8444 + Interview Questions in Primary School in Physics Page 8 InterviewSolution

351.	A metro train accelerates uniformly from rest to a velocity of 108 km/h in one minute.Find thedistance travelled by it. please answer as fast as can step by step please
Answer» ANSWER: 1.6km/minute Explanation: this is the answer

351.

A metro train accelerates uniformly from rest to a velocity of 108 km/h in one minute.Find thedistance travelled by it. please answer as fast as can step by step please

Answer»

ANSWER:

1.6km/minute

Explanation:

this is the answer

Discussion

352.	Least polluting fuel for vehicles?
Answer» ANSWER: Compressed Natural Gas (CNG) Explanation: The Compressed Natural Gas (CNG) is the LEAST POLLUTING FUEL for VEHICLES.

352.

Least polluting fuel for vehicles?

Answer»

ANSWER:

Compressed Natural Gas (CNG)

Explanation:

The Compressed Natural Gas (CNG) is the LEAST POLLUTING FUEL for VEHICLES.

Discussion

353.	A metro train accelerates uniformly from rest to a velocity of 108 km/h in one minute.Find thedistance travelled by it. please answer as fast as u can
Answer» ANSWER: 17.2s EXPLANATION: is the CORRECT answer

353.

A metro train accelerates uniformly from rest to a velocity of 108 km/h in one minute.Find thedistance travelled by it. please answer as fast as u can

Answer»

ANSWER:

17.2s

EXPLANATION:

is the CORRECT answer

Discussion

354.	A body is not at rest, the net external force acting on it cannot be zero is. It true or false?
Answer» ANSWER: true Explanation: coz when a body is moving,AIR is applying some FORCE to body

354.

A body is not at rest, the net external force acting on it cannot be zero is. It true or false?

Answer»

ANSWER:

true

Explanation:

coz when a body is moving,AIR is applying some FORCE to body

Discussion

355.	Is bacillus anthracis good bacteria ?
Answer» ANSWER: BACILLUS ANTHRACIS is not a GOOD bacteria. This bacteria CAUSED anthrax.

355.

Is bacillus anthracis good bacteria ?

Answer»

ANSWER:

BACILLUS ANTHRACIS is not a GOOD bacteria.

This bacteria CAUSED anthrax.

Discussion

356.	Magnetic field in simple words
Answer» Answer: The MAGNETIC field is the AREA around a magnet in which there is magnetic force. Moving electric charges can MAKE magnetic fields. ... In physics, the magnetic field is a field that PASSES through space and which makes a magnetic force move electric charges and magnetic dipoles. Explanation: Hope it helps you MARK ME AS BRAINLIEST PLEASE

356.

Magnetic field in simple words

Answer»

Answer:

The MAGNETIC field is the AREA around a magnet in which there is magnetic force. Moving electric charges can MAKE magnetic fields. ... In physics, the magnetic field is a field that PASSES through space and which makes a magnetic force move electric charges and magnetic dipoles.

Explanation:

Hope it helps you

MARK ME AS BRAINLIEST PLEASE

Discussion

357.	A metro train accelerates uniformly from rest to a velocity of 108 km/h in one minute.Find thedistance travelled by it.
Answer» ANSWER: Answer will be 9000 m or 9 KM

357.

A metro train accelerates uniformly from rest to a velocity of 108 km/h in one minute.Find thedistance travelled by it.

Answer»

ANSWER:

Answer will be 9000 m or 9 KM

Discussion

358.	An instrument cluster that is used to measure the diameter of a cricket ball is ____
Answer» ANSWER: wholepin mark me as brainloest

358.

An instrument cluster that is used to measure the diameter of a cricket ball is ____

Answer»

ANSWER:

wholepin

mark me as brainloest

Discussion

359.	Describe the unit of motion
Answer» ANSWER: $\huge\bold\star\fbox\red{Question ✿ ࿐}$ DESCRIBE the unit of motion $\huge\bold\star\fbox\red{Answer ✿ ࿐}$ SI unit of motion is metre PER SECOND or m/sec...

359.

Describe the unit of motion

Answer»

ANSWER:

$\huge\bold\star\fbox\red{Question ✿ ࿐}$

DESCRIBE the unit of motion

$\huge\bold\star\fbox\red{Answer ✿ ࿐}$

SI unit of motion is metre PER SECOND or m/sec...

Discussion

360.	Can a body in linear motion be in equilibrium?????
Answer» ANSWER: Yes, a body in linear motion can be in equilibrium provided the VECTOR sum of the FORCES acting upon the body is zero.

360.

Can a body in linear motion be in equilibrium?????

Answer»

ANSWER:

Yes, a body in linear motion can be in equilibrium provided the VECTOR sum of the FORCES acting upon the body is zero.

Discussion

361.	If you are provided with two lenses of focal length 10cm and 20cm, which of the two lenses would you suggest to obtain greater convergence of refracted light? A convex lens of focal length 20cm will have greater convergence have A concave lens of focal length 10cm will have greater convergence A convex of focal length 10cm will have greater convergence A concave lens of focal length 20cm will have greater convergence
Answer» ANSWER: do this EXPLANATION: If you are PROVIDED with two lenses of focal length 10cm and 20cm, which of the two lenses would you suggest to OBTAIN greater convergence of refracted light? A convex lens of focal length 20cm will have greater convergence have A concave lens of focal length 10cm will have greater convergence A convex of focal length 10cm will have greater convergence A concave lens of focal length 20cm will have greater convergence it's ANSWR

361.

If you are provided with two lenses of focal length 10cm and 20cm, which of the two lenses would you suggest to obtain greater convergence of refracted light? A convex lens of focal length 20cm will have greater convergence have A concave lens of focal length 10cm will have greater convergence A convex of focal length 10cm will have greater convergence A concave lens of focal length 20cm will have greater convergence

Answer»

ANSWER:

do this

EXPLANATION:

If you are PROVIDED with two lenses of focal length 10cm and 20cm, which of the two lenses would you suggest to OBTAIN greater convergence of refracted light?

A convex lens of focal length 20cm will have greater convergence have

A concave lens of focal length 10cm will have greater convergence

A convex of focal length 10cm will have greater convergence

A concave lens of focal length 20cm will have greater convergence

it's ANSWR

Discussion

362.	An experiment to trace the path of a ray of light through a glass slab was performed by four students A , B , C and D. They reported the following measurement of angle of incident i, angle of refraction r and angle of emergence e. Which one of the students has performed the experiment correctly? Student A : i=30° , r=25° , e=29° Student B : i=35° , r=40° , e=35° Students C : i=45° , r=40° , e=40° Student D : i=30° , r=25° , e=35°
Answer» Answer: CORRECT option is A angle of emergence is less than the angle of refraction C EMERGENT RAY is parallel to the refracted ray A. We know that angle of incidence is equal to angle of emergence. And for a light ray going from rarer to denser medium we also know that angle of incidence is greater than angle of refraction THUS it implies that angle of emergence is greater than angle of refraction. C. Since angle of emergence is equal to angle of incidence, thus emergent ray is parallel to incident ray.

362.

An experiment to trace the path of a ray of light through a glass slab was performed by four students A , B , C and D. They reported the following measurement of angle of incident i, angle of refraction r and angle of emergence e. Which one of the students has performed the experiment correctly? Student A : i=30° , r=25° , e=29° Student B : i=35° , r=40° , e=35° Students C : i=45° , r=40° , e=40° Student D : i=30° , r=25° , e=35°

Answer»

Answer:

CORRECT option is

A

angle of emergence is less than the angle of refraction

C

EMERGENT RAY is parallel to the refracted ray

A. We know that angle of incidence is equal to angle of emergence.

And for a light ray going from rarer to denser medium we also know that angle of incidence is greater than angle of refraction

THUS it implies that angle of emergence is greater than angle of refraction.

C. Since angle of emergence is equal to angle of incidence, thus emergent ray is parallel to incident ray.

Discussion

363.	Class 9thEnglish . . . . . . . . . . . .
Answer» ANSWER: that's answer BTO be HAPPY

363.

Class 9thEnglish . . . . . . . . . . . .

Answer»

ANSWER:

that's answer BTO be HAPPY

Discussion

364.	Preparing a list of examples for muscular force.List of activities where we exert force example: Lowering a basket. Give another 20 examples. Please give correct answer
Answer» Answer: Here are some examples of muscular force 1) Carrying a bag on the shoulders. 2) Playing basketball. 3) Breathing in and out 4) Pushing a heavy box. 5) Squeezing a SPONGE ball. 6) Lifting baggage. 7) An athlete running in a race. 8) Walking up the stairs 9) Chewing of food. 10) Kicking a football. 11)Lifting a pen 12) TYPING on a keyboard 13)Streaching Your arms when you wake up 14)WRITING Exam on paper 15)Clicking Mouse button 16)Removing Phone Cover 17)WEARING Headphones 18)eating Food 19)Looking away with your eves 20) laying down on bed Hope This Helps You!

364.

Preparing a list of examples for muscular force.List of activities where we exert force example: Lowering a basket. Give another 20 examples. Please give correct answer

Answer»

Answer:

Here are some examples of muscular force

1) Carrying a bag on the shoulders.

2) Playing basketball.

3) Breathing in and out

4) Pushing a heavy box.

5) Squeezing a SPONGE ball.

6) Lifting baggage.

7) An athlete running in a race.

8) Walking up the stairs

9) Chewing of food.

10) Kicking a football.

11)Lifting a pen

12) TYPING on a keyboard

13)Streaching Your arms when you wake up

14)WRITING Exam on paper

15)Clicking Mouse button

16)Removing Phone Cover

17)WEARING Headphones

18)eating Food

19)Looking away with your eves

20) laying down on bed

Hope This Helps You!

Discussion

365.	State True or False for the following statements
Answer» ANSWER: all ANSWERS are TRUE OK my BRO

365.

State True or False for the following statements

Answer»

ANSWER:

all ANSWERS are TRUE OK my BRO

Discussion

366.	Give reason Though an egg sinks in pure water, it will float salt water
Answer» ANSWER: this happen because egg is more dense than pure water it will sink and the DENSITY of salt water is more than egg that's why it FLOATS on water HOPE IT HELP YOU

366.

Give reason Though an egg sinks in pure water, it will float salt water

Answer»

ANSWER:

this happen because egg is more dense than pure water it will sink and the DENSITY of salt water is more than egg that's why it FLOATS on water

HOPE IT HELP YOU

Discussion

367.	Answer the above questions plz
Answer» Answer: i)-> Distance= $\frac{speed}{Time}$ = $\frac{6}{10}$ =0.8m ii)-> In Given Figure The max speed ACHIEVED by CAR is 6m/s iii)->Parts O, C, A, B shows ZERO ACCRETION iv) The graph shows Retardation from Point B to C Hope This Helps you!

367.

Answer the above questions plz

Answer»

Answer:

i)-> Distance= $\frac{speed}{Time}$

= $\frac{6}{10}$

=0.8m

ii)-> In Given Figure The max speed ACHIEVED by CAR is 6m/s

iii)->Parts O, C, A, B shows ZERO ACCRETION

iv) The graph shows Retardation from Point B to C

Hope This Helps you!

Discussion

368.	Give reason___________A piece of stone experience a loss of weight,while inside water
Answer» Answer: because it losses it air HOPE this MAY HELP you of not then SORRY

368.

Give reason___________A piece of stone experience a loss of weight,while inside water

Answer»

Answer:

because it losses it air

HOPE this MAY HELP you of not then SORRY

Discussion

369.	An object 6cm in length held 35cm away from a converging lens of focal length 10cm. Find the position and size of the image. A. Image distance= -12.72cm , height of the image= +2.18cmB. Image distance= 40.6cm , height of the image= -0.62cmC. Image distance= -40.6cm , height of the image= 0.62cm D. Image distance= 12.72cm , height of the image= -2.18cm
Answer» ANSWER: OBJECT distance=-35 cm Focal length=10 cm object height=6cm By LENS formula 1/v-1/u=1/f 1/v=1/f+1/u 1/v=1/10-1/35 1/v=5/70 1/v=1/14 v=14cm magnification=v/u 14/-35=-0.4 m=height of image/height of object -0.4=height of image/6 Height of image=0.24

369.

An object 6cm in length held 35cm away from a converging lens of focal length 10cm. Find the position and size of the image. A. Image distance= -12.72cm , height of the image= +2.18cmB. Image distance= 40.6cm , height of the image= -0.62cmC. Image distance= -40.6cm , height of the image= 0.62cm D. Image distance= 12.72cm , height of the image= -2.18cm

Answer»

ANSWER:

OBJECT distance=-35 cm

Focal length=10 cm

object height=6cm

By LENS formula

1/v-1/u=1/f

1/v=1/f+1/u

1/v=1/10-1/35

1/v=5/70

1/v=1/14

v=14cm

magnification=v/u

14/-35=-0.4

m=height of image/height of object

-0.4=height of image/6

Height of image=0.24

Discussion

370.	Why is the weight of the body not constant
Answer» Answer: Weight of a BODY is the MASS of the body tinus its ACCELERATION due to gravity. The gravitational acceleration is not constant and CHANGES DEPENDING on the mass of the larger body. Thus weight is not constant, unlike mass.

370.

Why is the weight of the body not constant

Answer»

Answer:

Weight of a BODY is the MASS of the body tinus its ACCELERATION due to gravity. The gravitational acceleration is not constant and CHANGES DEPENDING on the mass of the larger body. Thus weight is not constant, unlike mass.

Discussion

371.	A gun is fired from a distance of 1.2km from a hill. the echo of the sound is heard at the same place after 8second calculate the velocity of sound
Answer» ANSWER: your answer is 338.03 m/s Explanation: MARK me as barilinest....

371.

A gun is fired from a distance of 1.2km from a hill. the echo of the sound is heard at the same place after 8second calculate the velocity of sound

Answer»

ANSWER:

your answer is 338.03 m/s

Explanation:

MARK me as barilinest....

Discussion

372.	Which two iland in india?
Answer» ANSWER: ANDAMAN and Nicobar PLEASE MARK it as brainliest

372.

Which two iland in india?

Answer»

ANSWER:

ANDAMAN and Nicobar

PLEASE MARK it as brainliest

Discussion

373.	Salma takes 20 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 5 m/s, calculate the distance between her house and the school. (this is a class 7th question)
Answer» Answer: Provided that: Time taken = 20 minutes Speed = 5 m/s To calculate: The distance Solution: The distance = 6000 m Knowledge required: SI unit of distance = m SI unit of time = sec SI unit of speed = m/s Using concepts: Formula to CONVERT min-sec Formula to find distance Using formulas: 1 min = 60 sec Distance = Speed × Time Required solution: ~ Firstly let us convert min into sec! → 1 min = 60 sec → 20 min = 20 × 60 sec → 20 min = 1200 seconds Henceforth, converted! ~ Now let's calculate distance! → Distance = Speed × Time → Distance = 5 × 1200 → Distance = 6000 m Henceforth, SOLVED! $\:$ Difference between distance and displacement: $\begin{gathered}\boxed{\begin{array}{c\|cc}\bf Distance&\bf Displacement\\\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}&\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}\\\sf Path \: of \: length \: from \: which &\sf The \: shortest \: distance \: between \\ \sf \: object \: is \: travelling \: called \: distance. &\sf \: the \: initial \: point \: \& \: final \\ &\sf point \: is \: called \: displacement. \\\\\sf It \: is \: scalar \: quantity. &\sf It \: is \: vector \: quantity \\\\\sf It \: is \: positive \: always &\sf It \: can \: be \: \pm \: \& \: 0 \: too \end{array}}\end{gathered}$ Difference between speed and velocity: $\begin{gathered}\boxed{\begin{array}{c\|cc}\bf Speed&\bf Velocity\\\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}&\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}\\\sf The \: distance \: travelled \: by &\sf The \: distance \: travelled \: by \\ \sf \: a \: body \: per \: unit \: time&\sf \: a \: body \: per \: unit \: time \\ &\sf in \: a \: given \: direction \\\\\sf It \: is \: scalar \: quantity. &\sf It \: is \: vector \: quantity \\\\\sf It \: is \: positive \: always &\sf It \: can \: be \: \pm \: \& \: 0 \: too \\\\\sf Speed \: = \dfrac{Distance}{Time} &\sf Velocity \: = \dfrac{Displacement}{Time} \end{array}}\end{gathered}$

373.

Salma takes 20 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 5 m/s, calculate the distance between her house and the school. (this is a class 7th question)

Answer»

Answer:

Provided that:

Time taken = 20 minutes
Speed = 5 m/s

To calculate:

The distance

Solution:

The distance = 6000 m

Knowledge required:

SI unit of distance = m
SI unit of time = sec
SI unit of speed = m/s

Using concepts:

Formula to CONVERT min-sec
Formula to find distance

Using formulas:

1 min = 60 sec
Distance = Speed × Time

Required solution:

~ Firstly let us convert min into sec!

→ 1 min = 60 sec

→ 20 min = 20 × 60 sec

→ 20 min = 1200 seconds

Henceforth, converted!

~ Now let's calculate distance!

→ Distance = Speed × Time

→ Distance = 5 × 1200

→ Distance = 6000 m

Henceforth, SOLVED! $\:$

Difference between distance and displacement:

$\begin{gathered}\boxed{\begin{array}{c|cc}\bf Distance&\bf Displacement\\\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}&\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}\\\sf Path \: of \: length \: from \: which &\sf The \: shortest \: distance \: between \\ \sf \: object \: is \: travelling \: called \: distance. &\sf \: the \: initial \: point \: \& \: final \\ &\sf point \: is \: called \: displacement. \\\\\sf It \: is \: scalar \: quantity. &\sf It \: is \: vector \: quantity \\\\\sf It \: is \: positive \: always &\sf It \: can \: be \: \pm \: \& \: 0 \: too \end{array}}\end{gathered}$

Difference between speed and velocity:

$\begin{gathered}\boxed{\begin{array}{c|cc}\bf Speed&\bf Velocity\\\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}&\frac{\qquad \qquad \qquad\qquad\qquad \qquad\qquad\qquad}{}\\\sf The \: distance \: travelled \: by &\sf The \: distance \: travelled \: by \\ \sf \: a \: body \: per \: unit \: time&\sf \: a \: body \: per \: unit \: time \\ &\sf in \: a \: given \: direction \\\\\sf It \: is \: scalar \: quantity. &\sf It \: is \: vector \: quantity \\\\\sf It \: is \: positive \: always &\sf It \: can \: be \: \pm \: \& \: 0 \: too \\\\\sf Speed \: = \dfrac{Distance}{Time} &\sf Velocity \: = \dfrac{Displacement}{Time} \end{array}}\end{gathered}$

Discussion

374.	Question 8. A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because: (a) friction between the layers of newspaper produces heat (b) air trapped between the layers of newspaper is a bad conductor of heat. (C) newspaper is a conductor of heat. (d) newspaper is at a higher temperature than the temperature of the surroundiong.
Answer» ANSWER: i HOPE this ATTACHMENT HELPS it

374.

Question 8. A beggar wrapped himself with a few layers of newspaper on a cold winter night. This helped him to keep himself warm because: (a) friction between the layers of newspaper produces heat (b) air trapped between the layers of newspaper is a bad conductor of heat. (C) newspaper is a conductor of heat. (d) newspaper is at a higher temperature than the temperature of the surroundiong.

Answer»

ANSWER:

i HOPE this ATTACHMENT HELPS it

Discussion

375.	Question 7 Heat from the sun reaches to us by (a) radiation (b) conduction (c) convection (d) all of these
Answer» Answer: Explanation: Heat from the SUN reaches is by the PROCESS of radiation. As we know radiation do not need any material medium for heat transfer. It TAKES place in the form of electromagnetic radiations. In SPACE (where there is Sun) there is no atmosphere, no medium; so CONVECTION can't take place.

375.

Question 7 Heat from the sun reaches to us by (a) radiation (b) conduction (c) convection (d) all of these

Answer»

Answer:

Explanation:

Heat from the SUN reaches is by the PROCESS of radiation. As we know radiation do not need any material medium for heat transfer. It TAKES place in the form of electromagnetic radiations. In SPACE (where there is Sun) there is no atmosphere, no medium; so CONVECTION can't take place.

Discussion

376.	Give the five daily life example about the pressure,force and area relationshipit's too much hard
Answer» Answer: #1. School bags have wider straps. Wider the strap, less the pressure on our shoulders. #2. SKIS have larger area to reduce the pressure on the snow so they do not SINK too deep. #3.The studs on a football boot have a small area of contact with the ground . The pressure applied on the ground beneath the studs is sufficient for a good grip. #4. Wall foundations have a LARGE horizontal area(foot), to reduce the pressure beneath so that the wall does not sink deeper into the ground. #5. Small contact area of the tip of a nail. Smaller the contact area of the nail tip, larger is the pressure applied on to the nail to push in.

376.

Give the five daily life example about the pressure,force and area relationshipit's too much hard

Answer»

Answer: #1. School bags have wider straps.

Wider the strap, less the pressure on our shoulders.

#2. SKIS have larger area to reduce the pressure on the snow so they do not SINK too deep.

#3.The studs on a football boot have a small area of contact with the ground .

The pressure applied on the ground beneath the studs is sufficient for a good grip.

#4. Wall foundations have a LARGE horizontal area(foot), to reduce the pressure beneath so that the wall does not sink deeper into the ground.

#5. Small contact area of the tip of a nail.

Smaller the contact area of the nail tip, larger is the pressure applied on to the nail to push in.

Discussion

377.	100gc ms–¹ into SI system
Answer» Answer: OK L will try WAIT for 10 mintus and I SOLVE it and you put the QUESTION again 5 min

377.

100gc ms–¹ into SI system

Answer»

Answer:

OK L will try WAIT for 10 mintus and I SOLVE it and you put the QUESTION again 5 min

Discussion

378.	an object travels 14 m in 4 sec and then another 16 m in 2 sec . what is the average speed of an object
Answer» Answer: 5m/s is the required average SPEED Explanation: According to the Question It is given that object travels 14 m in 4 SEC and then another 16 m in 2 sec . we have to calculate the average Speed of the object . As we know that average speed is calculated by the sum of total DISTANCE covered divided by total time taken . Av.Speed = Total Distance/Total Time taken Putting all the values we get ➻ Av.Speed = 14+16/4+2 ➻ Av.Speed = 30/6 ➻ Av.Speed = 5m/s Therefore, the average speed of the object is 5m/s. Extrac Information : Some equation of motion are • v = u +at • s = UT +1/2at². • v² = u² + 2as Here, v is the final velocity u is the INITIAL velocity a is the acceleration s is the displacement or Distance t is the time taken

378.

an object travels 14 m in 4 sec and then another 16 m in 2 sec . what is the average speed of an object

Answer»

Answer:

5m/s is the required average SPEED

Explanation:

According to the Question

It is given that object travels 14 m in 4 SEC and then another 16 m in 2 sec . we have to calculate the average Speed of the object .

As we know that average speed is calculated by the sum of total DISTANCE covered divided by total time taken .

Av.Speed = Total Distance/Total Time taken

Putting all the values we get

➻ Av.Speed = 14+16/4+2

➻ Av.Speed = 30/6

➻ Av.Speed = 5m/s

Therefore, the average speed of the object is 5m/s.

Extrac Information :

Some equation of motion are

• v = u +at

• s = UT +1/2at².

• v² = u² + 2as

Here,

v is the final velocity

u is the INITIAL velocity

a is the acceleration

s is the displacement or Distance

t is the time taken

Discussion

379.	The images of the objects are formed on what
Answer» ANSWER: Within each chasing ARROWS triangle, there is a number which RANGES from one to SEVEN. The purpose of the number is to identify the type of plastic used for the PRODUCT, and not all plastics are recyclable or even reusable. There are numerous plastic-based products that cannot break down and cannot be recycled. plese mark branlist

379.

The images of the objects are formed on what

Answer»

ANSWER:

Within each chasing ARROWS triangle, there is a number which RANGES from one to SEVEN. The purpose of the number is to identify the type of plastic used for the PRODUCT, and not all plastics are recyclable or even reusable. There are numerous plastic-based products that cannot break down and cannot be recycled.

plese mark branlist

Discussion

380.	Fill in the blanks :-1. 36km/h________ m/s2. A girl cover's a distance of 60m in 1 minute her speed is ______.3. An instrument that shows the speed of vehicle in km/h is ______.4. An instrument that shows the distance travelled by the vehicle in km is _______.5. The volume of a regular solid is measured with the help of _____.6. Density of water is ______.7. 1 gm/cm³ = ______kg/m³
Answer» Answer: 1. 10ms¹ 2. 1ms¹ 3. speedometer 4. odometer 5. MEASURING cylinder 6. 997 kg/m³ 7. 997000kg/m³

380.

Fill in the blanks :-1. 36km/h____ m/s2. A girl cover's a distance of 60m in 1 minute her speed is .3. An instrument that shows the speed of vehicle in km/h is .4. An instrument that shows the distance travelled by the vehicle in km is _.5. The volume of a regular solid is measured with the help of _.6. Density of water is .7. 1 gm/cm³ = __kg/m³

Answer»

Answer:

1. 10ms¹

2. 1ms¹

3. speedometer

4. odometer

5. MEASURING cylinder

6. 997 kg/m³

7. 997000kg/m³

Discussion

381.	Question 6. Conduction is the method of transfer of heat in (a) liquids (b) solids (c) gases (d) vacuum
Answer» Answer: Solids Explanation: CONDUCTION takes PLACE in solids, whereas CONVECTION takes place in fluids(i.e., liquids and gases). TRANSFER of HEAT does not take place in vacuum.

381.

Question 6. Conduction is the method of transfer of heat in (a) liquids (b) solids (c) gases (d) vacuum

Answer»

Answer:

Solids

Explanation:

CONDUCTION takes PLACE in solids, whereas CONVECTION takes place in fluids(i.e., liquids and gases). TRANSFER of HEAT does not take place in vacuum.

Discussion

382.	a boy goes from his house to a market 2.6 km away point in the market close he return back to his house finding the distance covered by the boy what is the displacement
Answer» Answer: Distance to market s=2.5km=2.5×10 3 =2500m Speed with which he goes to market =5km/h=5 3600 10 3 = 18 25 m/s Speed with which he comes back =7.5km/h=7.5× 3600 10 3 = 36 75 m/s (a)Average velocity is zero since his displacement is zero. (b) (i)Since the initial speed is 5km/s and the market is 2.5 km away,TIME taken to reach market: 5 2.5 =1/2h=30 minutes. Average speed over this interval =5km/h (ii)After 30 minutes,the man is travelling wuth 7.5 km/h speed for 50-30=20 minutes.The distance he covers in 20 minutes :7.5× 3 1 =2.5km His average speed in 0 to 50 minutes: V avg = time distancetraveled = (50/60) 2.5+2.5 =6km/h (iii)In 40-30=10 minutes he travels a distance of :7.5× 6 1 =1.25km V avg = (40/60) 2.5+1.25 =5.625km/h

382.

a boy goes from his house to a market 2.6 km away point in the market close he return back to his house finding the distance covered by the boy what is the displacement

Answer»

Answer:

Distance to market s=2.5km=2.5×10

3

=2500m

Speed with which he goes to market =5km/h=5

3600

10

3

=

18

25

m/s

Speed with which he comes back =7.5km/h=7.5×

3600

10

3

=

36

75

m/s

(a)Average velocity is zero since his displacement is zero.

(b)

(i)Since the initial speed is 5km/s and the market is 2.5 km away,TIME taken to reach market:

5

2.5

=1/2h=30 minutes.

Average speed over this interval =5km/h

(ii)After 30 minutes,the man is travelling wuth 7.5 km/h speed for 50-30=20 minutes.The distance he covers in 20 minutes :7.5×

3

1

=2.5km

His average speed in 0 to 50 minutes: V

avg

=

time

distancetraveled

=

(50/60)

2.5+2.5

=6km/h

(iii)In 40-30=10 minutes he travels a distance of :7.5×

6

1

=1.25km

V

avg

=

(40/60)

2.5+1.25

=5.625km/h

Discussion

383.	A neutron moving with a certain kinetic energy collide head on with an atom.of mass number A.Find the fraction of kinetic energy retained by it.
Answer» Answer: 3rd option EXPLANATION https://www.toppr.com/ask/question/a-neutron-moving-with-a-certain-kinetic-energy-collides-head-on-with-an-atom-of/ can CHECK the above LINK for explanation.

383.

A neutron moving with a certain kinetic energy collide head on with an atom.of mass number A.Find the fraction of kinetic energy retained by it.

Answer»

Answer:

3rd option

EXPLANATION

https://www.toppr.com/ask/question/a-neutron-moving-with-a-certain-kinetic-energy-collides-head-on-with-an-atom-of/

can CHECK the above LINK for explanation.

Discussion

384.	Question 5 Heat always flows (a) from a colder object to a hotter object (b) from a hotter object to a colder object (c) in both the directions (d) heat never flows from one object to other
Answer» $\huge\mathfrak\purple{Aɴsᴡᴇʀ}$ $\red{ᴀɴsᴡᴇʀ - ᴛʀᴜᴇ✔}$ By the Second law of thermodynamics..the heat flows from an higher to LOWER REGION in terms of entropy.(Entropy is the MEASUREMENT of order of disorderness of a system).The entropy of a hot BODY is more than that of a cold one.

384.

Question 5 Heat always flows (a) from a colder object to a hotter object (b) from a hotter object to a colder object (c) in both the directions (d) heat never flows from one object to other

Answer»

$\huge\mathfrak\purple{Aɴsᴡᴇʀ}$

$\red{ᴀɴsᴡᴇʀ - ᴛʀᴜᴇ✔}$

By the Second law of thermodynamics..the heat flows from an higher to LOWER REGION in terms of entropy.(Entropy is the MEASUREMENT of order of disorderness of a system).The entropy of a hot BODY is more than that of a cold one.

Discussion

385.	Which is the odd one out in the following:a) dayb) minutec) yeard) clock
Answer» ANSWER: OPTION d (Clock) is the ODD one out Hope it HELPS you. Please MARK me as Brainlist.

385.

Which is the odd one out in the following:a) dayb) minutec) yeard) clock

Answer»

ANSWER:

OPTION d (Clock) is the ODD one out

Hope it HELPS you. Please MARK me as Brainlist.

Discussion

386.	What is motionthe change in a position of an object with respect to another nearby object
Answer» ANSWER: In PHYSICS, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time. hope it helps MARK it as brainliest PLEASE

386.

What is motionthe change in a position of an object with respect to another nearby object

Answer»

ANSWER:

In PHYSICS, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

hope it helps MARK it as brainliest PLEASE

Discussion

387.	Balance this chemical equation: Al(s) + HCl (aq) → AlCl3 (aq) + H2 (g)
Answer» Explanation: Al (s)+3HCl (aq)→AlCl3 (aq)+H2 (g) There are 3 H atoms on the reactant side and 2 on the PRODUCT side. The coefficient in front of HCl from 3 to 6, and add a coefficient of 3

387.

Balance this chemical equation: Al(s) + HCl (aq) → AlCl3 (aq) + H2 (g)

Answer»

Explanation:

Al (s)+3HCl (aq)→AlCl3 (aq)+H2 (g) There are 3 H atoms on the reactant side and 2 on the PRODUCT side. The coefficient in front of HCl from 3 to 6, and add a coefficient of 3

Discussion

388.	Plss tell all plsss its urgent
Answer» Answer: 1. OPTION ii 2. i 3. iii 4 i 5. IV

388.

Plss tell all plsss its urgent

Answer»

Answer:

1. OPTION ii

2. i

3. iii

4 i

5. IV

Discussion

389.	Convert 122 degree fahrenheit to celcius and kelvin
Answer» Answer: 122 degrees Fahrenheit may be CONVERTED as follows- F/32 + 9= C/5 122/32 + 9= C/5 C= 64 degrees Celsius Now, K= C + 273 = 64 +273= 337 K

389.

Convert 122 degree fahrenheit to celcius and kelvin

Answer»

Answer:

122 degrees Fahrenheit may be CONVERTED as follows-

F/32 + 9= C/5

122/32 + 9= C/5

C= 64 degrees Celsius

Now,

K= C + 273 = 64 +273= 337 K

Discussion

390.	Which crop is generally grown between two cereal crops rotation to restore the fertility of soil ?
Answer» ANSWER: LEGUMINOUS crops Leguminous crops like pulses and beans are generally grown between two KINDS of cereal crops in crop ROTATION to restore the fertility of the soil.

390.

Which crop is generally grown between two cereal crops rotation to restore the fertility of soil ?

Answer»

ANSWER:

LEGUMINOUS crops

Leguminous crops like pulses and beans are generally grown between two KINDS of cereal crops in crop ROTATION to restore the fertility of the soil.

Discussion

391.	Question 5. Heat always flows (a) from a colder object to a hotter object (b) from a hotter object to a colder object (C) in both the directions (d) heat never flows from one object to other
Answer» ANSWER: answer c Explanation: in both the DIRECTION

391.

Question 5. Heat always flows (a) from a colder object to a hotter object (b) from a hotter object to a colder object (C) in both the directions (d) heat never flows from one object to other

Answer»

ANSWER:

answer c

Explanation:

in both the DIRECTION

Discussion

392.	A body possessing an initial velocity of 2m/s-¹covers a distance of 24m during the 6thsecond of its motion calculate the accelerationof the body assuming it to be constant.
Answer» ANSWER: a=12ms² Explanation: s=ut+1/2at² 24m=2m/s×6sec+1/2×a×12 24m=12+1/2×12a 24m=12+12a/2 24m=6+12a 12a=24-6 12a=18 a=18/12 a=3/2ms²

392.

A body possessing an initial velocity of 2m/s-¹covers a distance of 24m during the 6thsecond of its motion calculate the accelerationof the body assuming it to be constant.

Answer»

ANSWER:

a=12ms²

Explanation:

s=ut+1/2at²

24m=2m/s×6sec+1/2×a×12

24m=12+1/2×12a

24m=12+12a/2

24m=6+12a

12a=24-6

12a=18

a=18/12

a=3/2ms²

Discussion

393.	Gravitation gravitation value
Answer» ANSWER: nxvjggbnjhfvhhtfvhjcv

393.

Gravitation gravitation value

Answer»

ANSWER:

nxvjggbnjhfvhhtfvhjcv

Discussion

394.	What is 20 by 20 means divided by
Answer» ANSWER: As 20 DIVIDED by 20 = 1 Explanation: HOPE it HELPS you

394.

What is 20 by 20 means divided by

Answer»

ANSWER:

As 20 DIVIDED by 20 = 1

Explanation:

HOPE it HELPS you

Discussion

395.	Which of these measure seconds most accuratelya. sundialb. pendulumc. sand clockd. digital watch
Answer» ANSWER: DIGITAL WATCH Explanation: A digital watch is MUCH more ACCURATE than them. Have a wonderful day!

395.

Which of these measure seconds most accuratelya. sundialb. pendulumc. sand clockd. digital watch

Answer»

ANSWER:

DIGITAL WATCH

Explanation:

A digital watch is MUCH more ACCURATE than them. Have a wonderful day!

Discussion

396.	Question 4 What is the normal temperature of a healthy person? (a) 37°C (b) 37°F (C) 37 K (d) None of these
Answer» ANSWER: EXPLANATION: OPTION a

396.

Question 4 What is the normal temperature of a healthy person? (a) 37°C (b) 37°F (C) 37 K (d) None of these

Answer»

ANSWER:

EXPLANATION:

OPTION a

Discussion

397.	Question 3 Which one is filled in the bulb of a thermometer? (a) Mercury (b) Lead (c) Copper (d) Silver
Answer» ANSWER: A)MERCURY EXPLANATION: Hope these ANSWERS helps you

397.

Question 3 Which one is filled in the bulb of a thermometer? (a) Mercury (b) Lead (c) Copper (d) Silver

Answer»

ANSWER:

A)MERCURY

EXPLANATION:

Hope these ANSWERS helps you

Discussion

398.	Answer the question given in the attachment☆ don't spam
Answer» ANSWER: hi. chelli. . good morning. . have a NICE DAY. . EXPLANATION: thinnara.. ☺

398.

Answer the question given in the attachment☆ don't spam

Answer»

ANSWER:

hi.

chelli. .

good morning. .

have a NICE DAY. .

EXPLANATION:

thinnara..

☺

Discussion

399.	Explain Area beneath vocal cordsclass 8
Answer» Explanation: YF ohvctc to the tomorrow to the tomorrow to the tomorrow to the tomorrow to the tomorrow you Joshva you have received your family are TRYING and I thought it might not have any other information in Spyder Godwin MOVIE REVIEW the tomorrow you will

399.

Explain Area beneath vocal cordsclass 8

Answer»

Explanation:

YF ohvctc to the tomorrow to the tomorrow to the tomorrow to the tomorrow to the tomorrow you Joshva you have received your family are TRYING and I thought it might not have any other information in Spyder Godwin MOVIE REVIEW the tomorrow you will

Discussion

400.	Why is the barometric height used as unit to express the atmospheric pressure? State the value of atmospheric pressure of a place in Pascals.
Answer» EXPLANATION: [2/7 11:23] MODH MEET VIII A: અત્યારે વાત નહીં થાય. શું ચાલે છે? [2/7 11:24] MODH MEET VIII A: હું બસ થોડી વારમાં કૉલ કરું તમને. [2/7 11:24] MODH MEET VIII A: હું તમને પછી કૉલ કરીશ. [2/7 11:25] MODH MEET VIII A: અત્યારે વાત નહીં થાય, મને પછી કૉલ કરશો? [2/7 11:25] MODH MEET VIII A: અત્યારે વાત નહીં થાય, મને પછી કૉલ કરશો? [2/7 11:25] MODH MEET VIII A: અત્યારે વાત નહીં થાય, મને પછી કૉલ કરશો?

400.

Why is the barometric height used as unit to express the atmospheric pressure? State the value of atmospheric pressure of a place in Pascals.

Answer»

EXPLANATION:

[2/7 11:23] MODH MEET VIII A: અત્યારે વાત નહીં થાય. શું ચાલે છે?

[2/7 11:24] MODH MEET VIII A: હું બસ થોડી વારમાં કૉલ કરું તમને.

[2/7 11:24] MODH MEET VIII A: હું તમને પછી કૉલ કરીશ.

[2/7 11:25] MODH MEET VIII A: અત્યારે વાત નહીં થાય, મને પછી કૉલ કરશો?

Discussion

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