67486 + Interview Questions in Secondary School in Physics

1.	The unit of RC is same asRC की इकाई समान हैSelect one:O A. RLRLO B.1/R21/R2C. L/RL/RD. R/LR/L
Answer» Explanation: 5603642259 PASSWORD 123456 LOVE JOIN PLEASE join I

1.

The unit of RC is same asRC की इकाई समान हैSelect one:O A. RLRLO B.1/R21/R2C. L/RL/RD. R/LR/L

Answer»

Explanation:

5603642259 PASSWORD 123456 LOVE JOIN PLEASE join I

Discussion

2.	Date : 02111 120EXPERLMENTNEN 1Mensure theLengththemeselewinge beleabileblockbreadthdockmetre rulein eachthe volumetheeu cm3 and m². Determine thetheanyConvenientbalance inthe glass en 있and volumerespectivethe relation belweenand thickness of a glasstakingof three readingand kg. Calculate thebylegeng C. G. s. I and fol unitswith. Obhaindensityoflaseof the blockodurity ofuringuringwind masstwo
Answer» ANSWER: PLEASE WRITE me a SINGLE QUESTION

2.

Date : 02111 120EXPERLMENTNEN 1Mensure theLengththemeselewinge beleabileblockbreadthdockmetre rulein eachthe volumetheeu cm3 and m². Determine thetheanyConvenientbalance inthe glass en 있and volumerespectivethe relation belweenand thickness of a glasstakingof three readingand kg. Calculate thebylegeng C. G. s. I and fol unitswith. Obhaindensityoflaseof the blockodurity ofuringuringwind masstwo

Answer»

ANSWER:

PLEASE WRITE me a SINGLE QUESTION

Discussion

3.	10. Which of these is made from hand loom?A)rayonB)polyesterC)khadiD)nylon
Answer» ANSWER: c) KHADI is MADE from hand LOOM

3.

10. Which of these is made from hand loom?A)rayonB)polyesterC)khadiD)nylon

Answer»

ANSWER:

c) KHADI is MADE from hand LOOM

Discussion

4.	(If (A). (B = 0) thenयदि (A). (B = 0) फिर-Select one:O AA) = 1,B) = 2Al = 1.1B1 = 2OB. A) = 3.B 1 = 4\A= 3.1B1= 4O C. (A) = 5.1B \| = 6A1 = 5. (B) = 6O DIA ) = 1.B ] = 1A] = 1.B] = 1
Answer» ANSWER: what is this???????...........

4.

(If (A). (B = 0) thenयदि (A). (B = 0) फिर-Select one:O AA) = 1,B) = 2Al = 1.1B1 = 2OB. A) = 3.B 1 = 4\A= 3.1B1= 4O C. (A) = 5.1B | = 6A1 = 5. (B) = 6O DIA ) = 1.B ] = 1A] = 1.B] = 1

Answer»

ANSWER:

what is this???????...........

Discussion

5.	34) A body of 2kg is initially at rest. If a constant force of5 N acts on it for 10 seconds, then what will be the averagepower of the force?A) 62.5 WattB) 50 WattC) 125 WattD) 25 Watt
Answer» EXPLANATION: lpls refer to attachment I hope this will useful to you and MARK me as BRAINLIST and FOLLOW me

5.

34) A body of 2kg is initially at rest. If a constant force of5 N acts on it for 10 seconds, then what will be the averagepower of the force?A) 62.5 WattB) 50 WattC) 125 WattD) 25 Watt

Answer»

EXPLANATION:

lpls refer to attachment I hope this will useful to you and MARK me as BRAINLIST and FOLLOW me

Discussion

6.	9. Obtaining of fabric form fibre is called----A) weavingB) spinningC)ginningD) sheering
Answer» Answer: spinning Explanation: SHOW more BACTERIA and country CLUB 6

6.

9. Obtaining of fabric form fibre is called----A) weavingB) spinningC)ginningD) sheering

Answer»

Answer:

spinning

Explanation:

SHOW more BACTERIA and country CLUB 6

Discussion

7.	What is the relation between the potential difference across a conductor and the current through it
Answer» EXPLANATION: ...... .......................

7.

What is the relation between the potential difference across a conductor and the current through it

Answer»

EXPLANATION:

......

.......................

Discussion

8.	Points P, Q and R are in a vertical line such that PQ = QR =h and P is the highest point. A ball at P is allowed to fall freely with initial velocity zero. t1 and t2 is time taken from PQ and QR, then which below given statements are correct 2 option are correctt1>t2 t1 : t2 = 1/✓2t1t2 t1: t2 = 1 : (✓2-1)t1
Answer» <P> Answer Applying second EQUATION of motion, For P to Q− h=0+ 2 1 gt 1 2 ⟹t 1 = g 2h For P to R− t 2 = g 2(2h) Time taken to DESCENT PQ=t 1 = g 2h Time taken to descent QR=t 2 −t 1 = g 2h ( 2 −1) Ratio =1:( 2 −1)

8.

Points P, Q and R are in a vertical line such that PQ = QR =h and P is the highest point. A ball at P is allowed to fall freely with initial velocity zero. t1 and t2 is time taken from PQ and QR, then which below given statements are correct 2 option are correctt1>t2 t1 : t2 = 1/✓2t1t2 t1: t2 = 1 : (✓2-1)t1

Answer»

<P>

Answer

Applying second EQUATION of motion,

For P to Q−

h=0+

2

1

gt

1

2

⟹t

1

=

g

2h

For P to R−

t

2

=

g

2(2h)

Time taken to DESCENT PQ=t

1

=

g

2h

Time taken to descent QR=t

2

−t

1

=

g

2h

(

2

−1)

Ratio =1:(

2

−1)

Discussion

9.	Column "B"3. Match the pairColumn "A"ii. Nonmetallic characterdown the groupa. Increasesb. Remainsthe samec. Decreases
Answer» ANSWER: b Explanation: PIYUSH BANDAL..........................

9.

Column "B"3. Match the pairColumn "A"ii. Nonmetallic characterdown the groupa. Increasesb. Remainsthe samec. Decreases

Answer»

ANSWER:

b

Explanation:

PIYUSH BANDAL..........................

Discussion

10.	What is the AMMETER READING in the given circuit. *Captionless Imagea) 0.5 Ab) 2Ac) 6Ad) 1A
Answer» ANSWER: B) 2A Explanation: HOPE it helps you PLZ THANK my answer

10.

What is the AMMETER READING in the given circuit. *Captionless Imagea) 0.5 Ab) 2Ac) 6Ad) 1A

Answer»

ANSWER:

B) 2A

Explanation:

HOPE it helps you PLZ THANK my answer

Discussion

11.	Q12 Use the diagram given below to answer,Q12 i) ,Q12ii), Q12 iii) Q12 i) What is the value of angle i *1 pointa) 45 degreeb) 30 degreec) 60 degreed) 90 degree
Answer» Answer: PLZ attach the diagram ALSO for correct answer. hopee U understand.

11.

Q12 Use the diagram given below to answer,Q12 i) ,Q12ii), Q12 iii) Q12 i) What is the value of angle i *1 pointa) 45 degreeb) 30 degreec) 60 degreed) 90 degree

Answer»

Answer:

PLZ attach the diagram ALSO for correct answer.

hopee U understand.

Discussion

12.	QUESTION 2(a) Find the energy released by a current of 0.25A flowing through a heaterfor 5 minutes, the potential difference is 230V.
Answer» Answer: Electricity is one of the forms of energy which involves the flow of electrons. It is a basic PART of nature and the most commonly used form of energy. The generation of electricity happens with the help of a device called an electric generator. When a current-carrying conductor moves across a magnetic field, an electric current generated in the conductor. A magnet is used at the end of the rotating shaft which is placed within a stationary CONDUCTING ring which is a long and a CONTINUOUS piece of wire. A small amount of electric current is INDUCED through the conductor at different sections as the magnet keeps MOVING. All these small currents add up to one considerable amount of current which is known as electric power.

12.

QUESTION 2(a) Find the energy released by a current of 0.25A flowing through a heaterfor 5 minutes, the potential difference is 230V.

Answer»

Answer:

Electricity is one of the forms of energy which involves the flow of electrons. It is a basic PART of nature and the most commonly used form of energy. The generation of electricity happens with the help of a device called an electric generator. When a current-carrying conductor moves across a magnetic field, an electric current generated in the conductor.

A magnet is used at the end of the rotating shaft which is placed within a stationary CONDUCTING ring which is a long and a CONTINUOUS piece of wire. A small amount of electric current is INDUCED through the conductor at different sections as the magnet keeps MOVING. All these small currents add up to one considerable amount of current which is known as electric power.

Discussion

13.	Give the velocitytime graph for an object moving with (1) uniform velocity(2) uniform negativeacceleration
Answer» Answer: HOPE it HELPS you please mark me as BRAINLIST and please follow me and VOTES on my all answers

13.

Give the velocitytime graph for an object moving with (1) uniform velocity(2) uniform negativeacceleration

Answer»

Answer:

HOPE it HELPS you

please mark me as BRAINLIST and please follow me and VOTES on my all answers

Discussion

14.	Visible light isदर्शनीय प्रकाश हेSelect one:O A. Electromagnetic wavesविद्युतचुम्बकीय तरंगेB. Ultravoilet radiationपराबैंगनी विकिरणC. none of theseइनमे से कोई भी नहींOD.Gamma radiationगामा विकिरण
Answer» ANSWER: C NONE of these is the CORRECT answer . . . . .

14.

Visible light isदर्शनीय प्रकाश हेSelect one:O A. Electromagnetic wavesविद्युतचुम्बकीय तरंगेB. Ultravoilet radiationपराबैंगनी विकिरणC. none of theseइनमे से कोई भी नहींOD.Gamma radiationगामा विकिरण

Answer»

ANSWER:

C NONE of these

is the CORRECT answer

.

Discussion

15.	Give the position time graph for an object moving with(1) increasing velocity and(2) decreasing velocity
Answer» Answer: Refer the ATTACHMENT and if further DOUBTS ASK again i will SURELY answer. Explanation:

15.

Give the position time graph for an object moving with(1) increasing velocity and(2) decreasing velocity

Answer»

Answer:

Refer the ATTACHMENT and if further DOUBTS ASK again i will SURELY answer.

Explanation:

Discussion

16.	Anyone knows the concept of train and coinflip questions?Like a train is moving northwards and a coin is flipped. Where will the coin move etc etc. and dont just spamKindly answer if you know and even links to locations would help.
Answer» EXPLANATION: Technically the coin will go up and down and not go in other direction as the coin is MOVING in the direction of the TRAIN from an OUTSIDE perspective and thus the movement of a train doesnot affect the movement of the coin from the perspective from the inside of the train , that much unless the train starts accelarating when the coin is flipped Source: Relativity of motion search it on google if you want in more detail

16.

Anyone knows the concept of train and coinflip questions?Like a train is moving northwards and a coin is flipped. Where will the coin move etc etc. and dont just spamKindly answer if you know and even links to locations would help.

Answer»

EXPLANATION:

Technically the coin will go up and down and not go in other direction as the coin is MOVING in the direction of the TRAIN from an OUTSIDE perspective and thus the movement of a train doesnot affect the movement of the coin from the perspective from the inside of the train , that much unless the train starts accelarating when the coin is flipped

Source:

Relativity of motion

search it on google if you want in more detail

Discussion

17.	Speed of a man in water is 5 km ther, mantories to cross a vive filowing towardscast at 3km/hr of width Toom.find the Shortest time in which man crossesriver.Aut what angle from flow velocity manShould swim to reach directly opposite PointMan starts swimming forum Point A makingS3 angle with flow velocity. Find thePosition where he will reach also findthe time.
Answer» $\huge \underline \green{\sf{ Answer :- }}$ a. Velocity of man with respect to river water, v=5kmh−1. This is greater than the river flow velocity. Therefore, he can cross the river directly (along the shortest PATH or no drift CONDITION from flow velocity). The ANGLE of swim, θ=2π+sin−1(vu) = 90o+sin−1(vu) = 90o+sin−1(53) =90o+37o = 127o w.r.t. the river flow or 37o w.r.t. the perpendicular in upstream direction b. RESULTANT velocity or velocity of mass will be vm = v2 −u2 = 52−32 =4kmh−1 $\small \underline {\sf{In \ the \ direction \ perpendicular \ to \ the \ river \ flow. }}$ c. time taken to cross the river t = d/ v2−u2d = 1km / 4kmh ^ −1 = 1 / 41h $\small \underline {\sf{ q \ = \ 15min}}$

17.

Speed of a man in water is 5 km ther, mantories to cross a vive filowing towardscast at 3km/hr of width Toom.find the Shortest time in which man crossesriver.Aut what angle from flow velocity manShould swim to reach directly opposite PointMan starts swimming forum Point A makingS3 angle with flow velocity. Find thePosition where he will reach also findthe time.

Answer»

$\huge \underline \green{\sf{ Answer :- }}$

a. Velocity of man with respect to river water, v=5kmh−1. This is greater than the river flow velocity. Therefore, he can cross the river directly (along the shortest PATH or no drift CONDITION from flow velocity). The ANGLE of swim,

θ=2π+sin−1(vu)

= 90o+sin−1(vu)

= 90o+sin−1(53)

=90o+37o

= 127o w.r.t. the river flow or 37o w.r.t. the perpendicular in upstream direction

b. RESULTANT velocity or velocity of mass will be vm = v2 −u2

= 52−32

=4kmh−1

$\small \underline {\sf{In \ the \ direction \ perpendicular \ to \ the \ river \ flow. }}$

c. time taken to cross the river

t = d/ v2−u2d

= 1km / 4kmh ^ −1

= 1 / 41h

$\small \underline {\sf{ q \ = \ 15min}}$

Discussion

18.	45 g of water at 50°C in a beaker is cooled when50 g of copper at 18°C is added to it. The contentsare stirred till a final constant temperature is reached.Calculate the final temperature. The specific heatcapacity of copper is 0.39 I g-1 K-1 and that of wateris 4.2 J g-1 K-1. State the assumption used. plZ answer fast
Answer» U HELP me then I am HELPING you

Discussion

19.	1. In a ballistic demonstration, a police officer firesa bullet of mass 50 g with a speed of 220 m/s on awooden target. The bullet emerges with 20% ofits initial K.E. What is the emergent speed of thebullet ?
Answer» Answer: 310 % PO ANG SGOT SANA makatulong

19.

1. In a ballistic demonstration, a police officer firesa bullet of mass 50 g with a speed of 220 m/s on awooden target. The bullet emerges with 20% ofits initial K.E. What is the emergent speed of thebullet ?

Answer»

Answer:

310 % PO ANG SGOT SANA makatulong

Discussion

20.	Challenge QuestionsAll motions are produced by force but not all forces produce motion. Explain.
Answer» DON'T *KNOW*............

20.

Challenge QuestionsAll motions are produced by force but not all forces produce motion. Explain.

Answer»

DON'T KNOW............

Discussion

21.	If me isthemass ofabody on the surface of the earth and mm of same body onthe earth andis thethemoon then
Answer» ANSWER: The MASS of the OBJECT on EARTH is 'm' then itsass on the MOON is 'm/6' this is the correct answer

21.

If me isthemass ofabody on the surface of the earth and mm of same body onthe earth andis thethemoon then

Answer»

ANSWER:

The MASS of the OBJECT on EARTH is 'm' then itsass on the MOON is 'm/6' this is the correct answer

Discussion

22.	2. Ipaliwanag ang pahayag na ito, maaaring magbahagi ng halimbawang kaganapan ositwasyon upang lubusang maipaliwanag ang kaisipan nito.
Answer» Answer: I can't understand your language . . . if you KNOW ENGLISH so please WRITE in English . . .

22.

2. Ipaliwanag ang pahayag na ito, maaaring magbahagi ng halimbawang kaganapan ositwasyon upang lubusang maipaliwanag ang kaisipan nito.

Answer»

Answer:

I can't understand your

language . . .

if you KNOW ENGLISH so

please WRITE in English . . .

Discussion

23.	A moment is due to a force not having an equaland opposite force directly along it's line of actionmeaning of this lines
Answer» Answer: moment is due to a force not having an equal and opposite force directly along it's line of action. ... The magnitude of the moment of a force ACTING about a point or axis is directly proportinoal to the distance of the force from the point or axis. It is defined as the product of the force (F) and the moment ARM (d).

23.

A moment is due to a force not having an equaland opposite force directly along it's line of actionmeaning of this lines

Answer»

Answer:

moment is due to a force not having an equal and opposite force directly along it's line of action. ... The magnitude of the moment of a force ACTING about a point or axis is directly proportinoal to the distance of the force from the point or axis. It is defined as the product of the force (F) and the moment ARM (d).

Discussion

24.	An object thrown upward then value of acceleration is1 point9.8m/s2.-9.8m/s2.6.67m/s2-6.67m/s2
Answer» Answer: -9.8m/s² as the body is GOING against G , there is a minus sign . hope it HELPED thabks

24.

An object thrown upward then value of acceleration is1 point9.8m/s2.-9.8m/s2.6.67m/s2-6.67m/s2

Answer»

Answer:

-9.8m/s²

as the body is GOING against G , there is a minus sign .

hope it HELPED

thabks

Discussion

25.	The heat energy absorbed at a constant temperature during transformation of liquid into gas is called ... *Latent heat of vaporizationLatent heat of fusionSpecific Latent heat of vaporizationSpecific Latent heat of fusion
Answer» ANSWER: LATENT HEAT of VAPOURIZATION

25.

The heat energy absorbed at a constant temperature during transformation of liquid into gas is called ... *Latent heat of vaporizationLatent heat of fusionSpecific Latent heat of vaporizationSpecific Latent heat of fusion

Answer»

ANSWER:

LATENT HEAT of VAPOURIZATION

Discussion

26.	Here is change in the velocity of the object shes the state of object wit(a) ao Con Speedo te of inform MeioScane of Non uniform Motionthe letion of a moving object is constant then the motion is saidthec) Mention with Constant Speed ( Motion with Uniform Acceleratiaco Motion with Uniform Velocity (4) Motion we Non Uniform acoloandet an experiment to find acceleration and velocity of an object meclied plane and went on
Answer» Answer: HOPE it HELPS you PLEASE mark me as brainlist and please follow me and votes on my all answers

26.

Here is change in the velocity of the object shes the state of object wit(a) ao Con Speedo te of inform MeioScane of Non uniform Motionthe letion of a moving object is constant then the motion is saidthec) Mention with Constant Speed ( Motion with Uniform Acceleratiaco Motion with Uniform Velocity (4) Motion we Non Uniform acoloandet an experiment to find acceleration and velocity of an object meclied plane and went on

Answer»

Answer:

HOPE it HELPS you

PLEASE mark me as brainlist and please follow me and votes on my all answers

Discussion

27.	Show that the totul linear momentum of a system ofa particle is conserved in absance of anyforce.Also show that the total linear momentunofis equal to the product of the totalmass of the system and the velocity of it centrethe systemofmas
Answer» ANSWER: CENTER..................

27.

Show that the totul linear momentum of a system ofa particle is conserved in absance of anyforce.Also show that the total linear momentunofis equal to the product of the totalmass of the system and the velocity of it centrethe systemofmas

Answer»

ANSWER:

CENTER..................

Discussion

28.	A circle of radius 'a' has charge density given by the cos'e on its druerence. What will bethe total charge on the circle?(A) sa ho(B) ZeroDj None of theseto zna
Answer» ANSWER: yre334rwwddcjoouytrrvhytygvggc *54dvhred* b Explanation: teedfii7yygfe2gg *5tgjiyrv*

28.

A circle of radius 'a' has charge density given by the cos'e on its druerence. What will bethe total charge on the circle?(A) sa ho(B) ZeroDj None of theseto zna

Answer»

ANSWER:

yre334rwwddcjoouytrrvhytygvggc 54dvhred b

Explanation:

teedfii7yygfe2gg 5tgjiyrv

Discussion

29.	Rust is an insoluble .... *hydrated sulphidehydrated oxidehydrated carbonatehydrated dioxide
Answer» Rust (Fe2O3·H2O) is formed HALFWAY between the drop center and the periphery which is alkaline. The ferrous ions on the surface of iron are soluble whereas those in solution are oxidized by OXYGEN to insoluble HYDRATED oxides of ferric CALLED rust.

Discussion

30.	Light from our first door neighbouring star reachesus in 4.5 year. Calculate its distance from earth inkilometre. Velocity of light is 3 x 108 m s-1. Take 1year = 365 days.
Answer» Answer: Light from our FIRST door neighbouring STAR reaches us in 4.5 year. CALCULATE its distance from earth in kilometre. Velocity of light is 3 x 108 m s-1. Take 1 year = 365 days. please mark me as BRIANLIEST

30.

Light from our first door neighbouring star reachesus in 4.5 year. Calculate its distance from earth inkilometre. Velocity of light is 3 x 108 m s-1. Take 1year = 365 days.

Answer»

Answer:

Light from our FIRST door neighbouring STAR reaches us in 4.5 year. CALCULATE its distance from earth in kilometre. Velocity of light is 3 x 108 m s-1. Take 1 year = 365 days.

please mark me as BRIANLIEST

Discussion

31.	A 5kg block is acted upon by two perpendicular forces of 8 N and 6 N .Find themagnitude and direction of the acceleration produced in the block.
Answer» ANSWER body of mass m is 5 kg R= (8) 2 +(−16 2 )= 64+36 =10N θis angle MADE by force of 8 N θ=tan −1 (−6/8)=−36.87 0 the negative sign indicates theta clockwise direction respect to the force of MAGNITUDE 8N force is m X a a=f/m=10/5=2ms −2

31.

A 5kg block is acted upon by two perpendicular forces of 8 N and 6 N .Find themagnitude and direction of the acceleration produced in the block.

Answer»

ANSWER

body of mass m is 5 kg

R=

(8)

2

+(−16

2

)=

64+36

=10N

θis angle MADE by force of 8 N

θ=tan

−1

(−6/8)=−36.87

0

the negative sign indicates theta clockwise direction respect to the force of MAGNITUDE 8N

force is m X a

a=f/m=10/5=2ms

−2

Discussion

32.	Heavy water is a _____________, which slows down fast moving neutrons to thermal velocitiesso that they can cause fission of uranium nuclei.
Answer» Answer: HEAVY water (D2O), ALSO called deuterium oxide Explanation: water COMPOSED of deuterium, the hydrogen isotope with a mass double that of ordinary hydrogen, and oxygen. (Ordinary water has a COMPOSITION represented by H2O.)

32.

Heavy water is a _____________, which slows down fast moving neutrons to thermal velocitiesso that they can cause fission of uranium nuclei.

Answer»

Answer:

HEAVY water (D2O), ALSO called deuterium oxide

Explanation:

water COMPOSED of deuterium, the hydrogen isotope with a mass double that of ordinary hydrogen, and oxygen. (Ordinary water has a COMPOSITION represented by H2O.)

Discussion

33.	The size of the atom is proportional to (i) A(ii) A1/3(iii) A2/3(iv) A-1/3
Answer» I *think* (!!!) 2/3 *sorry* i *don't* *know* *CORRECT* *answer* *I will* *TRY... But* I *don't* no it is *correct* or *WRONG*..

33.

The size of the atom is proportional to (i) A(ii) A1/3(iii) A2/3(iv) A-1/3

Answer»

I think

(!!!)

2/3

sorry i don't know CORRECT answer

I will TRY...

But I don't no it is correct or WRONG..

Discussion

34.	किसी धारा लूप का क्षेत्रफल .25 मीटरहै तथा उसमें प्रवाहित धारा .5 एंपियर हैइस लूप का चुंबकीय आघूर्ण क्या होगा0.123 Am(.124Am2125 Am20.126 Am
Answer» Answer: 536292988282889393939393

34.

किसी धारा लूप का क्षेत्रफल .25 मीटरहै तथा उसमें प्रवाहित धारा .5 एंपियर हैइस लूप का चुंबकीय आघूर्ण क्या होगा0.123 Am(.124Am2125 Am20.126 Am

Answer»

Answer:

536292988282889393939393

Discussion

35.	The size of the atom is proportional to(i) A(ii) A1/3(iii) A2/3(iv) A-1/3
Answer» ANSWER: atehevvydgdgeggeygee

35.

The size of the atom is proportional to(i) A(ii) A1/3(iii) A2/3(iv) A-1/3

Answer»

ANSWER:

atehevvydgdgeggeygee

Discussion

36.	If an object is moving with constant velocity then the motion(a) Motion with Non uniform acceleration(b) Motion with Uniform Acceleration(c) Uniform Motion(d) Non uniform Motion
Answer» ANSWER: C Explanation: it's uniform MOTION BEACUSE acceleration is ZERO

36.

If an object is moving with constant velocity then the motion(a) Motion with Non uniform acceleration(b) Motion with Uniform Acceleration(c) Uniform Motion(d) Non uniform Motion

Answer»

ANSWER:

C

Explanation:

it's uniform MOTION BEACUSE acceleration is ZERO

Discussion

37.	If we dig a tunnel through radius of the earth and an object of mass is dropped into it then1 it reaches to the centre of the earth and stop 2 it goes to the other end of the earth 3executes simple harmonic force4 it floats at the top of the tunnelthe person who answer write would be marked as brainliest
Answer» Answer: 3) EXECUTES SIMPLE HARMONIC FORCE

37.

If we dig a tunnel through radius of the earth and an object of mass is dropped into it then1 it reaches to the centre of the earth and stop 2 it goes to the other end of the earth 3executes simple harmonic force4 it floats at the top of the tunnelthe person who answer write would be marked as brainliest

Answer»

Answer:

3) EXECUTES SIMPLE HARMONIC FORCE

Discussion

38.	(1)Rules of Reflection of Light(2)Diagram of Reflection of Light with full explanationDon't spam need a correct answermere following me h unko chor kr koi spam nii kr skta
Answer» ANSWER: this your answer my SISTER. I have get READY for my online CLASSES so I have GIVEN the answer in the picture

38.

(1)Rules of Reflection of Light(2)Diagram of Reflection of Light with full explanationDon't spam need a correct answermere following me h unko chor kr koi spam nii kr skta

Answer»

ANSWER:

this your answer my SISTER. I have get READY for my online CLASSES so I have GIVEN the answer in the picture

Discussion

39.	If we dig a tunnel through the radius of the earth and an object of mass is dropped into it then1 it reaches to the centre of the earth and stops 2 it goes to the other end of the earth 3executes simple harmonic motion 4it floats at the top of the tunnel
Answer» Explanation: zeroes of the QUADRATIC POLYNOMIALS F(x)=x^2-px+q, then find the values ... Given Polynomial => x² - px + q = 0 ... rational NUMBER in decimal FORM $\frac{8}{13 }$ .... ....... .......................

39.

If we dig a tunnel through the radius of the earth and an object of mass is dropped into it then1 it reaches to the centre of the earth and stops 2 it goes to the other end of the earth 3executes simple harmonic motion 4it floats at the top of the tunnel

Answer»

Explanation:

zeroes of the QUADRATIC POLYNOMIALS F(x)=x^2-px+q, then find the values ... Given Polynomial => x² - px + q = 0 ... rational NUMBER in decimal FORM $\frac{8}{13 }$ ....

.......

.......................

Discussion

40.	Two quantities A and B have same dimensions whichmathematical operation given below is physicallymeaningful?(a A/B(b) A+B2 (c) AP-B (d) A=B?
Answer» ANSWER: a Explanation: just because i think please MARK me as branliest

40.

Two quantities A and B have same dimensions whichmathematical operation given below is physicallymeaningful?(a A/B(b) A+B2 (c) AP-B (d) A=B?

Answer»

ANSWER:

a

Explanation:

just because i think

please MARK me as branliest

Discussion

41.	15.Metals are defined as elements that form ____ ions by ____ electrons.Required to answer. Single choice.(1 Point)Negative, losingPositive, losingPositive, gainingNegative, gaining
Answer» B) POSITIVE IONS by LOSING ELECTRONS

Discussion

42.	Ona Cliff Shootsanis theA robot Standininga ball up ward withinitial Speed of30 m/sec WhatDigra teight ofthe cliff given that the ball reaches theofthe Clift 8secEsec after the Shoot(Takega lom/sect and the teight of the robotsnegligiblebottom
Answer» ANSWER: okkkkklkkkkkkkkk Explanation: PLZZZZZZ FOLLOW me

42.

Ona Cliff Shootsanis theA robot Standininga ball up ward withinitial Speed of30 m/sec WhatDigra teight ofthe cliff given that the ball reaches theofthe Clift 8secEsec after the Shoot(Takega lom/sect and the teight of the robotsnegligiblebottom

Answer»

ANSWER:

okkkkklkkkkkkkkk

Explanation:

PLZZZZZZ FOLLOW me

Discussion

43.	Which of the following pairs of vectors are parallel?(a) Ā=i-2j; B=i-5j (b) Ā=i-10); B = 2i – 5(c) A=1-5); B =i-10;(d) A=1-5); B = 2i-10
Answer» ANSWER: OKAY I will SEND it to FOLLOW me

43.

Which of the following pairs of vectors are parallel?(a) Ā=i-2j; B=i-5j (b) Ā=i-10); B = 2i – 5(c) A=1-5); B =i-10;(d) A=1-5); B = 2i-10

Answer»

ANSWER:

OKAY I will SEND it to FOLLOW me

Discussion

44.	For the circuit shown in below Figure, determine (a) the battery voltage V, (b)the total resistance of the circuit, and (c) the values of resistance of resistors R1, R2 and R3, given that the p.d.’s across R1, R2 and R3 are 5 V, 2 V and 6 V respectively. (3)
Answer» Answer: please SHOW the FIGURE. EXPLANATION: i will solve it please mark me as BRANLIEST

44.

For the circuit shown in below Figure, determine (a) the battery voltage V, (b)the total resistance of the circuit, and (c) the values of resistance of resistors R1, R2 and R3, given that the p.d.’s across R1, R2 and R3 are 5 V, 2 V and 6 V respectively. (3)

Answer»

Answer:

please SHOW the FIGURE.

EXPLANATION:

i will solve it

please mark me as BRANLIEST

Discussion

45.	Which of the following pairs of vectors are parallel?(a) Ā=i-2j; B=i-5j (6) Ā=i-10); B = 21 – 5;(c) A=i-5); B=i-10j(d) Ā=i-5); B = 21-10)
Answer» ANSWER: OKAY I will INBOX UR answer

45.

Which of the following pairs of vectors are parallel?(a) Ā=i-2j; B=i-5j (6) Ā=i-10); B = 21 – 5;(c) A=i-5); B=i-10j(d) Ā=i-5); B = 21-10)

Answer»

ANSWER:

OKAY I will INBOX UR answer

Discussion

46.	A cyclist going around a circular road of radius 10 m is observed to be bending inward 30° with vertical. Frictional force acting on the cyclist is ?(Given:g=10, mass of the cyclist is 90 kg)
Answer» ___________________ ★ Gɪᴠᴇɴ ★ Radius of circular road = 10m Mass of the cyclist = 90 kg The cyclist observed to be bending INWARD vertical of 30° ___________________ ☯ Tᴏ Fɪɴᴅ ☯ Frictional force acting on the cyclist ___________________ ✪ Sᴏʟᴜᴛɪᴏɴ ✪ → Rsinθ = FS ____(1) → Rcosθ = mg ____(2) DIVIDING EQUATION (1) & (2) → tanθ = fs/mg → tan(30°) = fs/90×10 → fs = 900 tan(30°) → fs = 900 × 0.577 → fs = 519.6 ≈ 520N ☑ Frictional force acting on the cyclist is 520N ___________________

46.

A cyclist going around a circular road of radius 10 m is observed to be bending inward 30° with vertical. Frictional force acting on the cyclist is ?(Given:g=10, mass of the cyclist is 90 kg)

Answer»

___________________

★ Gɪᴠᴇɴ ★

Radius of circular road = 10m
Mass of the cyclist = 90 kg
The cyclist observed to be bending INWARD vertical of 30°

___________________

☯ Tᴏ Fɪɴᴅ ☯

Frictional force acting on the cyclist

___________________

✪ Sᴏʟᴜᴛɪᴏɴ ✪

→ Rsinθ = FS ____(1)

→ Rcosθ = mg ____(2)

DIVIDING EQUATION (1) & (2)

→ tanθ = fs/mg

→ tan(30°) = fs/90×10

→ fs = 900 tan(30°)

→ fs = 900 × 0.577

→ fs = 519.6 ≈ 520N

☑ Frictional force acting on the cyclist is 520N

___________________

Discussion

47.	Q19. When current in a coil changes from 6 A to 2 A in 0.1 s, andvalue of induced e.m.f is 40 V. The self-inductance of the coil is *O (a) 1 1O (b) 6 HO (C)3 HO (d) 0.67 H
Answer» Answer: 3 H I HOPE it's HELPFUL for you

47.

Q19. When current in a coil changes from 6 A to 2 A in 0.1 s, andvalue of induced e.m.f is 40 V. The self-inductance of the coil is *O (a) 1 1O (b) 6 HO (C)3 HO (d) 0.67 H

Answer»

Answer:

3 H

I HOPE it's HELPFUL for you

Discussion

48.	The speed of light in air is 3×108 m s–1, whereas that of the speed of light in water is 2.26×108 m s–1. What is the refractive index of water with respect to air?10.751.322.64
Answer» EXPLANATION: lmibybeuwyb vwyv BuwbUabyquIu8#2373832uyrthjkhjnbnbhbyvtvtxecrdedd hj nnisnnksn

48.

The speed of light in air is 3×108 m s–1, whereas that of the speed of light in water is 2.26×108 m s–1. What is the refractive index of water with respect to air?10.751.322.64

Answer»

EXPLANATION:

lmibybeuwyb vwyv BuwbUabyquIu8#2373832uyrthjkhjnbnbhbyvtvtxecrdedd

hj nnisnnksn

Discussion

49.	The acceleration of the rod A in the arrangement shown in thefigure if the ratio of mass of wedge to that of rod equal to '7' andfriction between all contact surfaces is negligible1) адgcotag2) aa =tana + n cota1 +773) agcota + n tana4) AAg1 +n cot a
Answer» ANSWER: it will be HELPFUL for you

49.

The acceleration of the rod A in the arrangement shown in thefigure if the ratio of mass of wedge to that of rod equal to '7' andfriction between all contact surfaces is negligible1) адgcotag2) aa =tana + n cota1 +773) agcota + n tana4) AAg1 +n cot a

Answer»

ANSWER:

it will be HELPFUL for you

Discussion

50.	6616. An AC. series circuit contains 8 ohm ofresistance and 6 ohm of inductivereactance. What is the impedance of thecircuit(a) 14 ohm(b) 2 ohm( 10 ohm(d) 14.2 ohm
Answer» Answer: 10 is the answer EXPLANATION: See the IMAGE for the CIRCUIT DIAGRAM

50.

6616. An AC. series circuit contains 8 ohm ofresistance and 6 ohm of inductivereactance. What is the impedance of thecircuit(a) 14 ohm(b) 2 ohm( 10 ohm(d) 14.2 ohm

Answer»

Answer:

10 is the answer

EXPLANATION:

See the IMAGE for the CIRCUIT DIAGRAM

Discussion

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