67486 + Interview Questions in Secondary School in Physics

1.	Free body diagram of derrick crane
Answer» ANSWER: do you NEED it's for what

1.

Free body diagram of derrick crane

Answer»

ANSWER:

do you NEED it's for what

Discussion

2.	A constant force of 12 N acts on a body for 4 s. The change in the linear momentum of the body isa) 48 kgms - 1b) 0.48 kgms -1 c) 4.8 kgms -d) 480 kgms [ ]
Answer» ANSWER: a)48 kgms -1 is the answer HOPE HELP full

2.

A constant force of 12 N acts on a body for 4 s. The change in the linear momentum of the body isa) 48 kgms - 1b) 0.48 kgms -1 c) 4.8 kgms -d) 480 kgms [ ]

Answer»

ANSWER:

a)48 kgms -1 is the answer HOPE HELP full

Discussion

3.	The mean free path and rms velocity of anitrogen molecule at a temperature 17°C are1.2x10^-7m and 5x10^2m/s respectively. Thetime between two successive collections( With method please)1) 2.4x10^-10 S2) 1.2x10^-10 S3) 3.4x10^-13 S4) 3.4x10^-10 S
Answer» Answer: 1 Explanation: We KNOW time=distance/speed t=1.2×10^-7/5×10^2 t=.24×10^-9 t=2.4×10^-10

3.

The mean free path and rms velocity of anitrogen molecule at a temperature 17°C are1.2x10^-7m and 5x10^2m/s respectively. Thetime between two successive collections( With method please)1) 2.4x10^-10 S2) 1.2x10^-10 S3) 3.4x10^-13 S4) 3.4x10^-10 S

Answer»

Answer:

1

Explanation:

We KNOW time=distance/speed

t=1.2×10^-7/5×10^2

t=.24×10^-9

t=2.4×10^-10

Discussion

4.	A cartravels the first 20 kmhspeed of 40 km/h and the next 40 hProblemsspeed of 80km/h. find theQuestolacaawithaverage speed?
Answer» Answer: AVERAGE SPEED 60 Explanation: may be it's HELP you

4.

A cartravels the first 20 kmhspeed of 40 km/h and the next 40 hProblemsspeed of 80km/h. find theQuestolacaawithaverage speed?

Answer»

Answer:

AVERAGE SPEED 60

Explanation:

may be it's HELP you

Discussion

5.	A swimmer is swimming in a swimming pool at 60 m below the surface of the water. Calculate the pressure on the swimmer due to water above.(Density of water 1000 kg/m3, g = 9.8 m/s2)
Answer» Answer: LET atmospheric pressure =P o =1.05×10 5 Pa Pressure 10m below SURFACE of lake, P=P o +ρgh =1.05×10 5 +1000×9.8×10 −1.99×10 5 Pa =2 atm (ρ→ DENSITY of water =1000 kg/m 3 , g=9.8m/s 2 h→ Depth=10m).

5.

A swimmer is swimming in a swimming pool at 60 m below the surface of the water. Calculate the pressure on the swimmer due to water above.(Density of water 1000 kg/m3, g = 9.8 m/s2)

Answer»

Answer:

LET atmospheric pressure =P

o

=1.05×10

5

Pa

Pressure 10m below SURFACE of lake,

P=P

o

+ρgh

=1.05×10

5

+1000×9.8×10

−1.99×10

5

Pa

=2 atm (ρ→ DENSITY of water =1000 kg/m

3

, g=9.8m/s

2

h→ Depth=10m).

Discussion

6.	the time of oscillation of a simple pendulum is given by T=2π√l/g. in a particular experiment the length of the pendulum is measured
Answer» the period of oscillation of a simple pendulum is T= 2π√L/G.L is about 10 cm and is known to 1 mm accuracy. the period of oscillation is about 0.5s * the TIME of 100 oscillation is MEASURED with a wrist watch of 1s resolution. what is the accuracy in the determination of g THANK u

6.

the time of oscillation of a simple pendulum is given by T=2π√l/g. in a particular experiment the length of the pendulum is measured

Answer»

the period of oscillation of a simple pendulum is

T= 2π√L/G.L

is about

10 cm

and is known to

1 mm

accuracy. the period of oscillation is about

0.5s

* the TIME of 100 oscillation is MEASURED with a wrist watch of 1s resolution.

what is the accuracy in the determination of

g

THANK u

Discussion

7.	How do stopwatches measure to get the accurate measurement?
Answer» $\large\tt\underline\red{AnSweR}$ In most science experiments, researchers will normally use SI or the INTERNATIONAL SYSTEM of Units on any of their experiments. For stopwatches, the units of time that are generally USED when OBSERVING a stopwatch are minutes, seconds, and 'one-hundredth of a second'.

7.

How do stopwatches measure to get the accurate measurement?

Answer»

$\large\tt\underline\red{AnSweR}$

In most science experiments, researchers will normally use SI or the INTERNATIONAL SYSTEM of Units on any of their experiments.

For stopwatches, the units of time that are generally USED when OBSERVING a stopwatch are minutes, seconds, and 'one-hundredth of a second'.

Discussion

8.	Prove that ( vector A × vector B )= A^2B^2 - ( vector A • vector B)
Answer» ANSWER: same Explanation: same

8.

Prove that ( vector A × vector B )= A^2B^2 - ( vector A • vector B)

Answer»

ANSWER:

same

Explanation:

same

Discussion

9.	The magnitude of the displavement of an of objecet is aleays
Answer» EXPLANATION: SINCE the displacement is measured along the shortest path between two points, its magnitude is always less than or equal to the DISTANCE

9.

The magnitude of the displavement of an of objecet is aleays

Answer»

EXPLANATION:

SINCE the displacement is measured along the shortest path between two points, its magnitude is always less than or equal to the DISTANCE

Discussion

10.	Graphically represent velocity time graph and explain its type
Answer» ANSWER: A horizontal line on a speed-time graph represents a CONSTANT speed. A sloping line on a speed-time graph represents an acceleration. The sloping line shows that the speed of the object is CHANGING. The object is EITHER speeding up or slowing down.

10.

Graphically represent velocity time graph and explain its type

Answer»

ANSWER:

A horizontal line on a speed-time graph represents a CONSTANT speed. A sloping line on a speed-time graph represents an acceleration. The sloping line shows that the speed of the object is CHANGING. The object is EITHER speeding up or slowing down.

Discussion

11.	Give one way to change the sense of rotation of a body
Answer» A BODY ROTATES when there is a net torque acting on it. to Change the direction of rotation of a rotating body with fixed AXIS we will have to provide a retarding torque which will ultimately stop the rotation and will START in the OPPOSITE direction. As a result the direction of rotation of the body will change.

Discussion

12.	An object of mass 5 kg is sliding with a constant velocity of 4 m/s on a friction less horizontal table. The force required to keep the object moving with the same velocity is:
Answer» Answer: From newton's Ist law of motion, since there is no external force acting on the object it will remain in its ORIGINAL STATE of motion. Hence, zero force is REQUIRED to keep the object moving with constant VELOCITY, correct answer is 0N ihope it HELPFUL for you!

12.

An object of mass 5 kg is sliding with a constant velocity of 4 m/s on a friction less horizontal table. The force required to keep the object moving with the same velocity is:

Answer»

Answer:

From newton's Ist law of motion, since there is no external force acting on the object it will remain in its ORIGINAL STATE of motion. Hence, zero force is REQUIRED to keep the object moving with constant VELOCITY, correct answer is 0N

ihope it HELPFUL for you!

Discussion

13.	Please solve this one and no unnecessary answers please
Answer» HEY BUDDY HERE IS UR ANSWER......... INITIAL VELOCITY = U = 5m/s TIME TAKEN = t = 5s ACCELERATION = a = 2m/s² FINAL VELOCITY = V = ? From 1st equation of motion v=u+at v =5+2(5) v=5+10 v=15m/s SO, FINAL VELOCITY IS 15m/s HOPE U GOT IT ........ MARK ME AS BRAINLIEST........

13.

Please solve this one and no unnecessary answers please

Answer»

HEY BUDDY HERE IS UR ANSWER.........

INITIAL VELOCITY = U = 5m/s

TIME TAKEN = t = 5s

ACCELERATION = a = 2m/s²

FINAL VELOCITY = V = ?

From 1st equation of motion

v=u+at

v =5+2(5)

v=5+10

v=15m/s

SO, FINAL VELOCITY IS 15m/s

HOPE U GOT IT ........ MARK ME AS BRAINLIEST........

Discussion

14.	1A potentiometer has uniformpotential gradient across it. Twocells connected in series (i) tosupport each other and (ii) tooppose each other, arebalanced over 6 m and 2 mrespectively on thepotentiometer wire. The emfsof the cells are in the ratio of: *O 1:2O 1:1O 3:1O 2:1
Answer» ANSWER: Answer: The emf's of the two cells are in the RATIO 2:1. To FIND: The emf's of the cells ratio=? Solution: If the two cells are connected in SERIES, Then, i) Two support each other=E1+E2=6m ii) Two oppose each other=E1-E2=2m Now, Solve i & ii ⟹ 2E1=8m ⟹ E1=4m Substitute The value of E1 in the equation, ⟹ E2+4m=6m ⟹ E2=2m So, EMF'S of the cells, ⟹ E1/E2=l1/l2 ⟹ E1/E2=4/2 ⟹ E1/E2=2/1 ⟹ E1:E2=2:1

14.

1A potentiometer has uniformpotential gradient across it. Twocells connected in series (i) tosupport each other and (ii) tooppose each other, arebalanced over 6 m and 2 mrespectively on thepotentiometer wire. The emfsof the cells are in the ratio of: *O 1:2O 1:1O 3:1O 2:1

Answer»

ANSWER:

Answer:

The emf's of the two cells are in the RATIO 2:1.

To FIND:

The emf's of the cells ratio=?

Solution:

If the two cells are connected in SERIES,

Then,

i) Two support each other=E1+E2=6m

ii) Two oppose each other=E1-E2=2m

Now, Solve i & ii

⟹ 2E1=8m

⟹ E1=4m

Substitute The value of E1 in the equation,

⟹ E2+4m=6m

⟹ E2=2m

So,

EMF'S of the cells,

⟹ E1/E2=l1/l2

⟹ E1/E2=4/2

⟹ E1/E2=2/1

⟹ E1:E2=2:1

Discussion

15.	Find the energy in KW h consumed in 10 hours by four devices of power 500 volt each
Answer» FIND the energy in kW h consumed in 10 HOURS by four DEVICES of power 500 W each. Hence, the energy consumed by four equal rating devices in 10 h will be 4 — 5 kWh = 20 kWh = 20 Units.

Discussion

16.	Q.4 The instrument which changes the electric current in the circuit, iscalledO AmmeterOvoltmeterOrheostatO transformer
Answer» ANSWER: Here is your answer EXPLANATION: Transformer Hope it helps you PLZZZ follow me and mark it as BRAINLEST

16.

Q.4 The instrument which changes the electric current in the circuit, iscalledO AmmeterOvoltmeterOrheostatO transformer

Answer»

ANSWER:

Here is your answer

EXPLANATION:

Transformer

Hope it helps you

PLZZZ follow me and mark it as BRAINLEST

Discussion

17.	A ball of 5kg mass moving to the right at a velocity of 2m/s on a friction less table , collides with a stationary 7.5kg ball.find the final velocity of the balls if the collision is elastic.
Answer» Answer: $m_{1} v_{1} = m_{2} v_{2$ 10 = 7.5 * V2 100/75 = $v_{2$ 20/15 = $v_{2$ $v_{2$ = 4/3 m/s

17.

A ball of 5kg mass moving to the right at a velocity of 2m/s on a friction less table , collides with a stationary 7.5kg ball.find the final velocity of the balls if the collision is elastic.

Answer»

Answer:

$m_{1} v_{1} = m_{2} v_{2$

10 = 7.5 * V2

100/75 = $v_{2$

20/15 = $v_{2$

$v_{2$ = 4/3 m/s

Discussion

18.	Umesh Sutra ganit group
Answer» ANSWER: YEAH KYA QUESTIONS HAI.......

18.

Umesh Sutra ganit group

Answer»

ANSWER:

YEAH KYA QUESTIONS HAI.......

Discussion

19.	Who will explane me the full leason of newton's second law of motioni will.give them5 stars
Answer» Explanation: Newton's second law of motion can be formally stated as follows: The ACCELERATION of an OBJECT as PRODUCED by a net force is DIRECTLY PROPORTIONAL to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

19.

Who will explane me the full leason of newton's second law of motioni will.give them5 stars

Answer»

Explanation:

Newton's second law of motion can be formally stated as follows: The ACCELERATION of an OBJECT as PRODUCED by a net force is DIRECTLY PROPORTIONAL to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

Discussion

20.	I. The atoms with odd number of electrons in their outermost orbit will possess ______resultant magnetic moment.(a) Zero (b) Non-zero(c) Positive (d) Negative
Answer» ANSWER: non-zero Explanation: HOPE it HELPS uh Mark me as BRAINEST PLZ!!

20.

I. The atoms with odd number of electrons in their outermost orbit will possess ______resultant magnetic moment.(a) Zero (b) Non-zero(c) Positive (d) Negative

Answer»

ANSWER:

non-zero

Explanation:

HOPE it HELPS uh

Mark me as BRAINEST PLZ!!

Discussion

21.	Namethe following Name the alkaline earth metal that doesnot react with water
Answer» Beryllium Beryllium (Be) is the only alkaline earth metal that does not react with WATER or steam, even if metal is heated to RED heat. Additionally, beryllium has a resistant OUTER oxide layer that lowers its REACTIVITY at lower temperatures.

21.

Namethe following Name the alkaline earth metal that doesnot react with water

Answer»

Beryllium

Beryllium (Be) is the only alkaline earth metal that does not react with WATER or steam, even if metal is heated to RED heat. Additionally, beryllium has a resistant OUTER oxide layer that lowers its REACTIVITY at lower temperatures.

Discussion

22.	The angle between the direction of the disturbance and the direction of propagation of a transverse wave is
Answer» ANSWER: Longitudinal and transverse WAVES SOUND is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves. It requires a medium to propagate. Through SOLIDS, however, it can be transmitted as both longitudinal waves and transverse waves.

22.

The angle between the direction of the disturbance and the direction of propagation of a transverse wave is

Answer»

ANSWER:

Longitudinal and transverse WAVES

SOUND is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves. It requires a medium to propagate. Through SOLIDS, however, it can be transmitted as both longitudinal waves and transverse waves.

Discussion

23.	Examples of consequential force
Answer» Answer: The BEST example of a consequential force is frictional force. Frictional force ARISES due to a body which is moving or tends to move over another body, WHEREIN both the bodies are in contact. Explanation: Consequential forces are the resultant force or an outcome of the force which is applied to the concerned body.

23.

Examples of consequential force

Answer»

Answer:

The BEST example of a consequential force is frictional force.

Frictional force ARISES due to a body which is moving or tends to move over another body, WHEREIN both the bodies are in contact.

Explanation:

Consequential forces are the resultant force or an outcome of the force which is applied to the concerned body.

Discussion

24.	Displacement of the object can be ? a)positive b) negative c) zero d) allof these
Answer» d) all of these................................................ MARK as BRAINLIEST

24.

Displacement of the object can be ? a)positive b) negative c) zero d) allof these

Answer»

d) all of these................................................

MARK as BRAINLIEST

Discussion

25.	Que7-Dimension formula for curie isO [LT-1]O [L-1]O (T-1]O [M-1]O Other:
Answer» ANSWER: Other Explanation: HOPE it HELPS uh Mark me as BRAINEST PLZ!

25.

Que7-Dimension formula for curie isO [LT-1]O [L-1]O (T-1]O [M-1]O Other:

Answer»

ANSWER:

Other

Explanation:

HOPE it HELPS uh

Mark me as BRAINEST PLZ!

Discussion

26.	A) A single movable pulley is used along with a fixed pulley to raise a load of 192 N. The total amount ofresistance to be overcome including the weight of the movable pulley and friction is 48 N.i. State the velocity ratio of the pulley combinationii. Calculate the mechanical advantage of the pulley combinationiii. Determine the efficiency of the pulley combination
Answer» ANSWER: hhxjcj KHALID RITZ did WELL park park isZ SHOTS Great di of

26.

A) A single movable pulley is used along with a fixed pulley to raise a load of 192 N. The total amount ofresistance to be overcome including the weight of the movable pulley and friction is 48 N.i. State the velocity ratio of the pulley combinationii. Calculate the mechanical advantage of the pulley combinationiii. Determine the efficiency of the pulley combination

Answer»

ANSWER:

hhxjcj KHALID RITZ did WELL park park isZ SHOTS Great di of

Discussion

27.	Ans plse fastet guys (sarangaeeeeeeeArmy)
Answer» Answer: 1st STATEMENT is correct in the case of a PRIMARY rainbow. The arc shows red outside and violet colour in the inner side. And also the third statement, really a primary rainbow is formed by refraction . This rainbow is caused by light being refracted when entering a droplet of WATER, then reflected inside on the BACK of the droplet and refracted again when leaving it. Explanation: So 1st statement is COMPLETELY correct.

27.

Ans plse fastet guys (sarangaeeeeeeeArmy)

Answer»

Answer:

1st STATEMENT is correct in the case of a PRIMARY rainbow. The arc shows red outside and violet colour in the inner side. And also the third statement, really a primary rainbow is formed by refraction . This rainbow is caused by light being refracted when entering a droplet of WATER, then reflected inside on the BACK of the droplet and refracted again when leaving it.

Explanation:

So 1st statement is COMPLETELY correct.

Discussion

28.	A metre bridge is used todetermine the resistance of anunknown wire by measuringthe balance length 1. If the wireis replaced by another wire ofsame material but with doublethe length and half thethickness, the balancing pointis expected to be:O 1/81O 1/41O 81O 161
Answer» Answer: option B EXPLANATION: PLS MARK me the BRAINLIEST

28.

A metre bridge is used todetermine the resistance of anunknown wire by measuringthe balance length 1. If the wireis replaced by another wire ofsame material but with doublethe length and half thethickness, the balancing pointis expected to be:O 1/81O 1/41O 81O 161

Answer»

Answer:

option B

EXPLANATION:

PLS MARK me the BRAINLIEST

Discussion

29.	A convenient method to describe the magnetic field around a magnet is to draw magnetic field lines around it. In order to do so, place a magnet on a cardboard sheet and gently sprinkle some iron filings uniformly over it. The iron filings are found to arrange themselves in a pattern. The curved paths along which the iron filings arrange themselves due to the force acting on them in the magnetic field of the bar magnet are called magnetic field lines
Answer» Answer: When IRON filings are sprinkled AROUND a magnet, an image of the magnetic field is captured. ... Furthermore, these iron filings SEPARATE into clearly visible PATTERNS of lines.

29.

A convenient method to describe the magnetic field around a magnet is to draw magnetic field lines around it. In order to do so, place a magnet on a cardboard sheet and gently sprinkle some iron filings uniformly over it. The iron filings are found to arrange themselves in a pattern. The curved paths along which the iron filings arrange themselves due to the force acting on them in the magnetic field of the bar magnet are called magnetic field lines

Answer»

Answer:

When IRON filings are sprinkled AROUND a magnet, an image of the magnetic field is captured. ... Furthermore, these iron filings SEPARATE into clearly visible PATTERNS of lines.

Discussion

30.	Q8 In the following circuit,find the-(1/2+1/2+1)OV-sawan80trunga) Equivalent resistanceb) Ammeter readingc) Voltmeter reading with totally sol.
Answer» Answer: 2 Explanation: because1/2+1/2+2 first of all we right this EQUATION . Then what we do ?so we want to do to EQUAL denominator of this equation . so for equalised the denominator of this equation we factorized denominator and after the factorised the denominator is equal and then we added the numerator only and after added the numerator the equation is 4/2 and then we CUT 4by2 and then the answer is 2 .

30.

Q8 In the following circuit,find the-(1/2+1/2+1)OV-sawan80trunga) Equivalent resistanceb) Ammeter readingc) Voltmeter reading with totally sol.

Answer»

Answer:

2

Explanation:

because1/2+1/2+2 first of all we right this EQUATION . Then what we do ?so we want to do to EQUAL denominator of this equation . so for equalised the denominator of this equation we factorized denominator and after the factorised the denominator is equal and then we added the numerator only and after added the numerator the equation is 4/2 and then we CUT 4by2 and then the answer is 2 .

Discussion

31.	A raindrop falling down with terminal velocity is an example of what equilibrium
Answer» $\large\tt\underline\red{Dynamic \: <klux>EQUILIBRIUM</klux>}$ In the TOPIC Dynamic Equilibrium, there is an example which states that a rain DROP reaches the earth SURFACE with a constant velocity .

31.

A raindrop falling down with terminal velocity is an example of what equilibrium

Answer»

$\large\tt\underline\red{Dynamic \: <klux>EQUILIBRIUM</klux>}$

In the TOPIC Dynamic Equilibrium, there is an example which states that a rain DROP reaches the earth SURFACE with a constant velocity .

Discussion

32.	For the equation V = 10 + 4t, what is the acceleration of the body? *0 m/s10 m/s4 m/s8 m/splz answer fast
Answer» Answer: 4 Explanation: DIFFERENTIATE it once.

32.

For the equation V = 10 + 4t, what is the acceleration of the body? *0 m/s10 m/s4 m/s8 m/splz answer fast

Answer»

Answer:

4

Explanation:

DIFFERENTIATE it once.

Discussion

33.	A coin is tossed vertically upward in the train which is moving with uniform velocity , then the coin will.1 falls ahead to yhe thrower.2 falls behind to the thrower .3 falls either ahead or behind of the thtower.4 returns to the thrower.please answer fastly
Answer» Answer: opt 4 Explanation: This is due to inertia. The coin will get a HORIZONTAL velocity from the TRAIN THUS following a parabolic PATH and then returning to the man.

33.

A coin is tossed vertically upward in the train which is moving with uniform velocity , then the coin will.1 falls ahead to yhe thrower.2 falls behind to the thrower .3 falls either ahead or behind of the thtower.4 returns to the thrower.please answer fastly

Answer»

Answer:

opt 4

Explanation:

This is due to inertia.

The coin will get a HORIZONTAL velocity from the TRAIN THUS following a parabolic PATH and then returning to the man.

Discussion

34.	A cell of emf 10 V and internalresistance 3 Q is connected toa uniform wire of length 500cm and resistance 30. Thepotential gradient in the wire isO 30 mV/cm0 10 mV/cmO 20 mV/cmO 4 mV/cm
Answer» Answer: YE MUZE nahi AATA do it by yourself or with a friend

34.

A cell of emf 10 V and internalresistance 3 Q is connected toa uniform wire of length 500cm and resistance 30. Thepotential gradient in the wire isO 30 mV/cm0 10 mV/cmO 20 mV/cmO 4 mV/cm

Answer»

Answer:

YE MUZE nahi AATA do it by yourself or with a friend

Discussion

35.	In desert the image of a tree is inverted.why
Answer» Explanation: BECOZ only some trees and PLANTS can survive in DESERT LIKE the CACTUS plants, palm tree etc

35.

In desert the image of a tree is inverted.why

Answer»

Explanation:

BECOZ only some trees and PLANTS can survive in DESERT LIKE the CACTUS plants, palm tree etc

Discussion

36.	What is the relationship between the magnitude of speed and that of velocity? (1) Magnitude of speed is always greater than or equal to the magnitude of velocity. (2) Magnitude of speed is always smaller than or equal to the magnitude of velocity. (C Magnitude of speed is always smaller than the magnitude of velocity. (4) None of these
Answer» ANSWER: F in a CLASS 6 LIVE in a class 6 live

36.

What is the relationship between the magnitude of speed and that of velocity? (1) Magnitude of speed is always greater than or equal to the magnitude of velocity. (2) Magnitude of speed is always smaller than or equal to the magnitude of velocity. (C Magnitude of speed is always smaller than the magnitude of velocity. (4) None of these

Answer»

ANSWER:

F in a CLASS 6 LIVE in a class 6 live

Discussion

37.	which of the following statements is correct a havier body has larger inertia than the lighter body , lighter body has larger inertia than yhe heavier body , jnertia of the body does not depend upon the mass of the body , inertia is the ability of a body to change its state of rest or uniform motion on its own
Answer» Answer: 1st option is correct ⇒ a HEAVIER body has LARGER INERTIA than the LIGHTER body ¯\_(ツ)_/¯

37.

which of the following statements is correct a havier body has larger inertia than the lighter body , lighter body has larger inertia than yhe heavier body , jnertia of the body does not depend upon the mass of the body , inertia is the ability of a body to change its state of rest or uniform motion on its own

Answer»

Answer:

1st option is correct

⇒ a HEAVIER body has LARGER INERTIA than the LIGHTER body

¯\_(ツ)_/¯

Discussion

38.	What is mass number and atomicnumber?
Answer» Answer: The mass number (symbol A, from the German word Atomgewicht [atomic weight]), ALSO called atomic mass number or nucleon number, is the TOTAL number of protons and NEUTRONS (together known as nucleons) in an atomic nucleus. mark me as BRAINLIST

38.

What is mass number and atomicnumber?

Answer»

Answer:

The mass number (symbol A, from the German word Atomgewicht [atomic weight]), ALSO called atomic mass number or nucleon number, is the TOTAL number of protons and NEUTRONS (together known as nucleons) in an atomic nucleus.

mark me as BRAINLIST

Discussion

39.	A cell of 1 V is connectedacross a potentiometer,balancing length is 600 cm.What is balancing length for 2.5V? *O400 cmO600 cmO1500 cm
Answer» ANSWER: D.1500cm Explanation:

39.

A cell of 1 V is connectedacross a potentiometer,balancing length is 600 cm.What is balancing length for 2.5V? *O400 cmO600 cmO1500 cm

Answer»

ANSWER:

D.1500cm

Explanation:

Discussion

40.	Aluminium alloy is used for making
Answer» $\huge\mathbb\red{Answer:-}$ Alloys in this series possess moderate to high STRENGTH characteristics, as well as good weldablility and RESISTANCE to corrosion in the marine environment. Because of this, aluminum-magnesium alloys are widely used in building and CONSTRUCTION, storage TANKS, PRESSURE vessels and marine applications HOPE THIS HELPS YOU AND PLEASE MARK ME AS A BRAINLEIST

40.

Aluminium alloy is used for making

Answer»

$\huge\mathbb\red{Answer:-}$

Alloys in this series possess moderate to high STRENGTH characteristics, as well as good weldablility and RESISTANCE to corrosion in the marine environment. Because of this, aluminum-magnesium alloys are widely used in building and CONSTRUCTION, storage TANKS, PRESSURE vessels and marine applications

HOPE THIS HELPS YOU AND PLEASE MARK ME AS A BRAINLEIST

Discussion

41.	The term used for polymers made up of a large number of glucoseunits is called __________.(a) Protein (b) Fructose(c) Cellulose (d) Polyester
Answer» ANSWER: d. polyester. hope it HELPS you

41.

The term used for polymers made up of a large number of glucoseunits is called __________.(a) Protein (b) Fructose(c) Cellulose (d) Polyester

Answer»

ANSWER:

d. polyester.

hope it HELPS you

Discussion

42.	If action is always equal to the reaction explain how a horse can pull a cart
Answer» Answer:If action is always EQUAL to the REACTION, explain how a horse can pull a cart. A horse pushes the ground in the backward DIRECTION. According to Newton's third law of motion, a reaction force is exerted by the Earth on the horse in the forward direction. As a RESULT, the cart moves forward. Explanation:

42.

If action is always equal to the reaction explain how a horse can pull a cart

Answer»

Answer:If action is always EQUAL to the REACTION, explain how a horse can pull a cart. A horse pushes the ground in the backward DIRECTION. According to Newton's third law of motion, a reaction force is exerted by the Earth on the horse in the forward direction. As a RESULT, the cart moves forward.

Explanation:

Discussion

43.	Which of the following statements is correct.1 a havier body has larger inertia than the lighter body ,.2 lighter body has larger inertia than yhe heavier body ,.3 jnertia of the body does not depend upon the mass of the body , .4 inertia is the ability of a body to change its state of rest or uniform motion on its own please answer quikly
Answer» ANSWER: OPT 1 Explanation: INERTIA is DIRECTLY PROPORTIONAL to inertia

43.

Which of the following statements is correct.1 a havier body has larger inertia than the lighter body ,.2 lighter body has larger inertia than yhe heavier body ,.3 jnertia of the body does not depend upon the mass of the body , .4 inertia is the ability of a body to change its state of rest or uniform motion on its own please answer quikly

Answer»

ANSWER:

OPT 1

Explanation:

INERTIA is DIRECTLY PROPORTIONAL to inertia

Discussion

44.	A farmer makes a complete round of his farm, which is a square of 200mx200m. What is the distance and displacement of the farmer after completing one full round
Answer» $\huge\sf\pink{Answer}$ ☞ DISTANCE is 800 m & Displacement is 0 m ━━━━━━━━━━━━━ $\huge\sf\blue{Given}$ ✭ A father completes a WHOLE round of his square field of side 200 m ━━━━━━━━━━━━━ $\huge\sf\gray{To \:Find}$ ◈ Distance & Displacement travelled by the farmer? ━━━━━━━━━━━━━ $\huge\sf\purple{Steps}$ We know that the distance travelled by a body is equal to TOTAL length covered by it so here to find the distance travelled by the farmer we have to find the perimeter of the square, that is, $\underline{\boxed{\sf Perimeter_{Square} = 4a}}$ Substituting the given VALUES, ➝ $\sf Perimeter = 4\times 200$ ➝ $\sf Perimeter = 800 \ m$ ➝ $\sf \red{Distance = 800 \ m}$ We also know that the displacement of a body is equal to the shortest distance between two points so here as the farmer completes a FULL round he will return to the point in which he started and so the shortest distance will be, ➳ $\sf \orange{Displacement = 0 \ m}$ ━━━━━━━━━━ ☯ $\large\underline{\sf Know \ More}$ »» Distance is a scalar quantity & Displacement is a vector quantity »» Distance travelled by a moving body can't be 0 whereas Displacement of a moving body can be zero »» Distance is either equal to or greater than the Displacement and can never be smaller than Displacement ━━━━━━━━━━━━━━━━━━

44.

A farmer makes a complete round of his farm, which is a square of 200mx200m. What is the distance and displacement of the farmer after completing one full round

Answer»

$\huge\sf\pink{Answer}$

☞ DISTANCE is 800 m & Displacement is 0 m

━━━━━━━━━━━━━

$\huge\sf\blue{Given}$

✭ A father completes a WHOLE round of his square field of side 200 m

━━━━━━━━━━━━━

$\huge\sf\gray{To \:Find}$

◈ Distance & Displacement travelled by the farmer?

━━━━━━━━━━━━━

$\huge\sf\purple{Steps}$

We know that the distance travelled by a body is equal to TOTAL length covered by it so here to find the distance travelled by the farmer we have to find the perimeter of the square, that is,

$\underline{\boxed{\sf Perimeter_{Square} = 4a}}$

Substituting the given VALUES,

➝ $\sf Perimeter = 4\times 200$

➝ $\sf Perimeter = 800 \ m$

➝ $\sf \red{Distance = 800 \ m}$

We also know that the displacement of a body is equal to the shortest distance between two points so here as the farmer completes a FULL round he will return to the point in which he started and so the shortest distance will be,

➳ $\sf \orange{Displacement = 0 \ m}$

━━━━━━━━━━

☯ $\large\underline{\sf Know \ More}$

»» Distance is a scalar quantity & Displacement is a vector quantity

»» Distance travelled by a moving body can't be 0 whereas Displacement of a moving body can be zero

»» Distance is either equal to or greater than the Displacement and can never be smaller than Displacement

━━━━━━━━━━━━━━━━━━

Discussion

45.	2. Based on the conduction of electricity ,substances are divided into two categories namely conductors and insulators. Those substances which allow electricity to pass through them are called conductors. Those substances which do not allow electricity to pass through them are called insulators. In conductors the electrons are called ‘free electrons’ which are loosely held by the nuclei of their atoms. These electrons are free to move from one atom to another atom throughout the conductor. Hence, the presence of electrons is accountable for their ability to conduct electricity through them .In insulators ,there are no free electrons as they are tightly or strongly held by the nuclei of their atoms. Thus, electrons cannot move from one atom to another atom as the insulators does not allow the charges to flow through it.i) Name one conductor and insulator material.ii) Why are conductors different from the insulators?iii) Why conductor wires have rubbery coating?
Answer» ANSWER: 1ST CONDUCTER- copper INSULATOR- plastic 2nd current WOULD pass through conducter but not through insulator current would not pass through our body so wires are coated with rubber Explanation: rubber are insulator

45.

2. Based on the conduction of electricity ,substances are divided into two categories namely conductors and insulators. Those substances which allow electricity to pass through them are called conductors. Those substances which do not allow electricity to pass through them are called insulators. In conductors the electrons are called ‘free electrons’ which are loosely held by the nuclei of their atoms. These electrons are free to move from one atom to another atom throughout the conductor. Hence, the presence of electrons is accountable for their ability to conduct electricity through them .In insulators ,there are no free electrons as they are tightly or strongly held by the nuclei of their atoms. Thus, electrons cannot move from one atom to another atom as the insulators does not allow the charges to flow through it.i) Name one conductor and insulator material.ii) Why are conductors different from the insulators?iii) Why conductor wires have rubbery coating?

Answer»

ANSWER:

1ST CONDUCTER- copper
INSULATOR- plastic

2nd current WOULD pass through conducter but not through insulator

current would not pass through our body so wires are coated with rubber

Explanation:

rubber are insulator

Discussion

46.	2what dodo mean by Binding energyper nucleon
Answer» ANSWER: STORED energy by nucleus it can NEITHER be create or nor be DESTROYED

46.

2what dodo mean by Binding energyper nucleon

Answer»

ANSWER:

STORED energy by nucleus it can NEITHER be create or nor be DESTROYED

Discussion

47.	How should I answer 1000questions in 3 weeks
Answer» ANSWER: मेहनत Explanation: मेहनती बनो Do HARDWORK

47.

How should I answer 1000questions in 3 weeks

Answer»

ANSWER:

मेहनत

Explanation:

मेहनती बनो

Do HARDWORK

Discussion

48.	Reflection occur in mirror as well as in lenses. ____ Is this statement correct or not???
Answer» EXPLANATION: YES it OCCUR i am not SURE about it but i THINK

48.

Reflection occur in mirror as well as in lenses. ____ Is this statement correct or not???

Answer»

EXPLANATION:

YES it OCCUR

i am not SURE about it but i THINK

Discussion

49.	Awhat is the displacementThe Velocity teme graph of a body. In motion is depictedcalculate the displacement of the body.0090BAol1234567890 UTC
Answer» Answer: The shortest distance between the STARTING point and the ENDING point is CALLED DISPLACEMENT.

49.

Awhat is the displacementThe Velocity teme graph of a body. In motion is depictedcalculate the displacement of the body.0090BAol1234567890 UTC

Answer»

Answer:

The shortest distance between the STARTING point and the ENDING point is CALLED DISPLACEMENT.

Discussion

50.	When two or more force act in the same direction they..... together
Answer» Explanation: The direction of the net force determines the direction of the object's motion. When TWO FORCES act in the same direction, they ADD together. When forces act in opposite directions, they are COMBINED by subtracting the SMALLER force from the larger force.

50.

When two or more force act in the same direction they..... together

Answer»

Explanation:

The direction of the net force determines the direction of the object's motion. When TWO FORCES act in the same direction, they ADD together. When forces act in opposite directions, they are COMBINED by subtracting the SMALLER force from the larger force.

Discussion

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