6277 + Interview Questions in Physics Page 51 InterviewSolution

2501.	Figure shows four cells on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.
Answer» Figure shows four cells on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.

Discussion

2502.	A refractive index of a medium wrt air is n=root2 find the criticle angle between the two medium
Answer» A refractive index of a medium wrt air is n=root2 find the criticle angle between the two medium

Discussion

2503.	In which direction does air exerts pressure?
Answer» In which direction does air exerts pressure?

Discussion

2504.	Complete the following sentences. (i) The chatter is electrical because _____________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ (ii) It is mysterious because ___________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________
Answer» Complete the following sentences. (i) The chatter is electrical because _____________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ (ii) It is mysterious because ___________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________

2504.

Complete the following sentences. (i) The chatter is electrical because _ _ _ _____________ (ii) It is mysterious because _ _____________ _ _______________________________

Answer»

Complete the following
sentences.

(i) The chatter is
electrical because _____________________________

___________________________________________________________

(ii) It is mysterious
because ___________________________________

___________________________________________________________

Discussion

2505.	Which one of the following hypothetical heat engine cycles represents maximum efficiency ?
Answer» Which one of the following hypothetical heat engine cycles represents maximum efficiency ?

Discussion

2506.	Which one of the following is/are true about electricity?
Answer» Which one of the following is/are true about electricity?

2506.

Which one of the following is/are true about electricity?

Answer»

Which one of the following is/are true about electricity?

Discussion

2507.	A potentiometer wire has length 4 m and resistance8 Ω . The resistance that must be connected inseries with the wire and an accumulator of e.m.f.2 V, so as to get a potential gradient 1 mV per cmon the wire isAIPMT-2015\rbrack(1) 48Ω (3) 40 Ω (2) 32Ω (4) 44 Ω
Answer» A potentiometer wire has length 4 m and resistance8 Ω . The resistance that must be connected inseries with the wire and an accumulator of e.m.f.2 V, so as to get a potential gradient 1 mV per cmon the wire isAIPMT-2015\rbrack(1) 48Ω (3) 40 Ω (2) 32Ω (4) 44 Ω

Discussion

2508.	62. Mahesh wanted to know whether the decrease in thenumber of images of an object placed between twomirrors would vary proportionally to the rate at whichthe angle between them increases. So, he arranged twoplane mirrors facing each other in such a way that theywere inclined at an angle of 5^° . They were arrangedsuch that the angle between them increased uniformlyat 1per second. What is his inference?
Answer» 62. Mahesh wanted to know whether the decrease in thenumber of images of an object placed between twomirrors would vary proportionally to the rate at whichthe angle between them increases. So, he arranged twoplane mirrors facing each other in such a way that theywere inclined at an angle of 5^° . They were arrangedsuch that the angle between them increased uniformlyat 1per second. What is his inference?

Discussion

2509.	13. A particle of mass m approaches earth from a great distance with initial speed root of GM/R, where M and R are mass of earth and radius of earth, respectively. If the particle passes off tangentially to the earth's surface, the value of b is K times R. Find K.
Answer» 13. A particle of mass m approaches earth from a great distance with initial speed root of GM/R, where M and R are mass of earth and radius of earth, respectively. If the particle passes off tangentially to the earth's surface, the value of b is K times R. Find K.

Discussion

2510.	Current i is being carried in infinite wire passing through origin alond direction I+J+k. Find the magnetic field due to the wire at (1m,0,0)
Answer» Current i is being carried in infinite wire passing through origin alond direction I+J+k. Find the magnetic field due to the wire at (1m,0,0)

Discussion

2511.	The motion of a coin over the carrom board is :
Answer» The motion of a coin over the carrom board is :

2511.

The motion of a coin over the carrom board is :

Answer»

The motion of a coin over the carrom board is :

Discussion

2512.	Explain the function of a switch in an electric circuit? [2 MARKS]
Answer» Explain the function of a switch in an electric circuit? [2 MARKS]

Discussion

2513.	The area of a square of side 14 cm will be:
Answer» The area of a square of side 14 cm will be:

Discussion

2514.	Find the volume of wire up to proper significant figures. The radius and length of wire are 0.46&21.7cm respectively
Answer» Find the volume of wire up to proper significant figures. The radius and length of wire are 0.46&21.7cm respectively

Discussion

2515.	Sir/Ma'am Can you give me the examples of conduction in liquid, solids and gases and convection in liquids and gases and also some examples of radiation.
Answer» Sir/Ma'am Can you give me the examples of conduction in liquid, solids and gases and convection in liquids and gases and also some examples of radiation.

2515.

Sir/Ma'am Can you give me the examples of conduction in liquid, solids and gases and convection in liquids and gases and also some examples of radiation.

Answer»

Sir/Ma'am

Can you give me the examples of conduction in liquid, solids and gases and convection in liquids and gases and also some examples of radiation.

Discussion

2516.	Why is it advised not to hold the thermometer by its bulb while reading it?
Answer» Why is it advised not to hold the thermometer by its bulb while reading it?

Discussion

2517.	Write five difference between a M.C.B and a Fuse?
Answer» Write five difference between a M.C.B and a Fuse?

Discussion

2518.	Degree of indeterminacy of the pin jointed frame given below is:2
Answer» Degree of indeterminacy of the pin jointed frame given below is: 2

Discussion

2519.	113.A boy has to go 50 m due north, 40 m due east and 20 m due south to reach school. What is his displacement?
Answer» 113.A boy has to go 50 m due north, 40 m due east and 20 m due south to reach school. What is his displacement?

Discussion

2520.	A car, moving with speed 108 km/h on a straight road, decreases its speed uniformly to 90 km/h in 5 seconds. The displacement of the car in the last second of its motion, before it comes to a halt, is
Answer» A car, moving with speed 108 km/h on a straight road, decreases its speed uniformly to 90 km/h in 5 seconds. The displacement of the car in the last second of its motion, before it comes to a halt, is

Discussion

2521.	Question 8 (c) When current is switched ‘on’ in a room heater, it ___.
Answer» Question 8 (c) When current is switched ‘on’ in a room heater, it ___.

Discussion

2522.	If a rock is brought to Earth from the surface of the moon, then __
Answer» If a rock is brought to Earth from the surface of the moon, then __

Discussion

2523.	A 1 cm object is placed perpendicular to the principal axis of a convex mirror of focal length 7.5 cm. Find its distance from the mirror if the image formed is 0.6 cm in size.
Answer» A 1 cm object is placed perpendicular to the principal axis of a convex mirror of focal length 7.5 cm. Find its distance from the mirror if the image formed is 0.6 cm in size.

Discussion

2524.	Two masses m_{1 }and m_2 are connected by light rod of length l . If rod is rotating about an axis with angular speed ω . Such that its kinetic energy is minimum then its K.E. i
Answer» Two masses m_{1 }and m_2 are connected by light rod of length l . If rod is rotating about an axis with angular speed ω . Such that its kinetic energy is minimum then its K.E. i

Discussion

2525.	An unequal angle section 200 mm×150 mm×15 mm is to be used in a truss as a strut of effective length 4.5 m The cross - sectional properties of the section are as follows: Area of cross - section =5025mm2Ixx=2×107mm4,Iyy=9.7×106mm4 and Ixy=−8.3×106mm4By using the table of permissible compressive stress given below, the load on the member should be kN.λ100110120140150160170180σac(Mpa)8072645145413733251.74
Answer» An unequal angle section $200 mm \times 150 mm \times 15 mm$ is to be used in a truss as a strut of effective length 4.5 m The cross - sectional properties of the section are as follows: Area of cross - section $= 5025 m m^{2}$ $I_{x x} = 2 \times 10^{7} m m^{4}, I_{y y} = 9.7 \times 10^{6} m m^{4}$ and $I_{x y} = - 8.3 \times 10^{6} m m^{4}$ By using the table of permissible compressive stress given below, the load on the member should be kN. $\begin{matrix} λ & 100 & 110 & 120 & 140 & 150 & 160 & 170 & 180 σ_{a c} (M p a) & 80 & 72 & 64 & 51 & 45 & 41 & 37 & 33 \end{matrix}$ 251.74

2525.

An unequal angle section 200 mm×150 mm×15 mm is to be used in a truss as a strut of effective length 4.5 m The cross - sectional properties of the section are as follows: Area of cross - section =5025mm2Ixx=2×107mm4,Iyy=9.7×106mm4 and Ixy=−8.3×106mm4By using the table of permissible compressive stress given below, the load on the member should be kN.λ100110120140150160170180σac(Mpa)8072645145413733251.74

Answer»

An unequal angle section $200 mm \times 150 mm \times 15 mm$ is to be used in a truss as a strut of effective length 4.5 m The cross - sectional properties of the section are as follows: Area of cross - section $= 5025 m m^{2}$

$I_{x x} = 2 \times 10^{7} m m^{4}, I_{y y} = 9.7 \times 10^{6} m m^{4}$ and $I_{x y} = - 8.3 \times 10^{6} m m^{4}$

By using the table of permissible compressive stress given below, the load on the member should be kN.

$\begin{matrix} λ & 100 & 110 & 120 & 140 & 150 & 160 & 170 & 180 σ_{a c} (M p a) & 80 & 72 & 64 & 51 & 45 & 41 & 37 & 33 \end{matrix}$

251.74

Discussion

2526.	When heat flows through a hot body to a cold body does the atoms get exchanged of the bodies
Answer» When heat flows through a hot body to a cold body does the atoms get exchanged of the bodies

Discussion

2527.	What is lcr circuit? Explain with diagram.
Answer» What is lcr circuit? Explain with diagram.

Discussion

2528.	A solid sphere with a cavity, just floats in water. The volume of sphere is V and relative density of material of sphere is 2. The volume of cavity is
Answer» A solid sphere with a cavity, just floats in water. The volume of sphere is V and relative density of material of sphere is 2. The volume of cavity is

Discussion

2529.	Units of work done is ________.
Answer» Units of work done is ________.

Discussion

2530.	Rainbow is formed due to totlal internal reflection or due to refraction and scattering
Answer» Rainbow is formed due to totlal internal reflection or due to refraction and scattering

Discussion

2531.	Which of following statement(s) is/are true with respect to a prism if 'i' is the incident light ray and the dotted line shows the normal to the point where light strikes?
Answer» Which of following statement(s) is/are true with respect to a prism if 'i' is the incident light ray and the dotted line shows the normal to the point where light strikes?

2531.

Which of following statement(s) is/are true with respect to a prism if 'i' is the incident light ray and the dotted line shows the normal to the point where light strikes?

Answer»

Which of following statement(s) is/are true with respect to a prism if 'i' is the incident light ray and the dotted line shows the normal to the point where light strikes?

Discussion

2532.	In a given thermometer, there are 100 major divisions between the freezing point and boiling point of water. Each major division is equal to 5 minor divisions. What is the minimum temperature above the freezing point of water that can be captured by the thermometer?
Answer» In a given thermometer, there are 100 major divisions between the freezing point and boiling point of water. Each major division is equal to 5 minor divisions. What is the minimum temperature above the freezing point of water that can be captured by the thermometer?

Discussion

2533.	Which of the following is/are NOT a magnetic material?
Answer» Which of the following is/are NOT a magnetic material?

Discussion

2534.	State reasons for the following statements:(a) Tap water conducts electricity, whereas distilled water does not.(b) During the summer season, a milkman usually adds a very small amount of baking soda to fresh milk.
Answer» State reasons for the following statements: (a) Tap water conducts electricity, whereas distilled water does not. (b) During the summer season, a milkman usually adds a very small amount of baking soda to fresh milk.

2534.

State reasons for the following statements:(a) Tap water conducts electricity, whereas distilled water does not.(b) During the summer season, a milkman usually adds a very small amount of baking soda to fresh milk.

Answer»

State reasons for the following statements:

(a) Tap water conducts electricity, whereas distilled water does not.

(b) During the summer season, a milkman usually adds a very small amount of baking soda to fresh milk.

Discussion

2535.	In a Brayton cycle, maximum and minimum temperatures are 1300 K and 295 K respectively. If the compressor and turbine efficiencies are 0.88 and 0.92 respectively, the optimum pressure ratio for maximum work output is _____9.26
Answer» In a Brayton cycle, maximum and minimum temperatures are 1300 K and 295 K respectively. If the compressor and turbine efficiencies are 0.88 and 0.92 respectively, the optimum pressure ratio for maximum work output is _____ 9.26

Discussion

2536.	In a young’s double slit arrangement, two very narrow slits are spaced d=1.8μm apart and are placed D=35 cm from a screen. The arrangement is illuminated with coherent light with wavelength λ=540nm. Choose the correct statement(s)
Answer» In a young’s double slit arrangement, two very narrow slits are spaced $d = 1.8 μ m$ apart and are placed D=35 cm from a screen. The arrangement is illuminated with coherent light with wavelength $λ = 540 n m .$ Choose the correct statement(s)

Discussion

2537.	identify the phenomenon occurring in the image below.
Answer» identify the phenomenon occurring in the image below.

2537.

identify the phenomenon occurring in the image below.

Answer»

identify the phenomenon occurring in the image below.

Discussion

2538.	How to do problems based on temperature inversion of thermocouple
Answer» How to do problems based on temperature inversion of thermocouple

Discussion

2539.	A series circuit is also known as
Answer» A series circuit is also known as

Discussion

2540.	Question 2 (v) State whether the following statement is true or false. Bar magnets always point towards North-South direction.
Answer» Question 2 (v) State whether the following statement is true or false. Bar magnets always point towards North-South direction.

2540.

Question 2 (v) State whether the following statement is true or false. Bar magnets always point towards North-South direction.

Answer»

Question 2 (v)

State whether the following statement is true or false.

Bar magnets always point towards North-South direction.

Discussion

2541.	A thermos flask prevents loss of heat bya. conductionb. convectionc. radiationd. all of these
Answer» A thermos flask prevents loss of heat by a. conduction b. convection c. radiation d. all of these

Discussion

2542.	Identify the name of the device that can be used to test whether an object is carrying a charge or not. When a charged body is brought near the object the two thin leaves attached to the rod move away from each other indicating a presence of charge.
Answer» Identify the name of the device that can be used to test whether an object is carrying a charge or not. When a charged body is brought near the object the two thin leaves attached to the rod move away from each other indicating a presence of charge.

Discussion

2543.	Question 15Draw figure showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.
Answer» Question 15 Draw figure showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.

2543.

Question 15Draw figure showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.

Answer»

Question 15

Draw figure showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.

Discussion

2544.	a) Renna walks a distance of 2 km in 40 minute. Find her speed.b) If the girl walk back and covers the same distance in 50 minute. What is the average speed of the girl.
Answer» a) Renna walks a distance of 2 km in 40 minute. Find her speed. b) If the girl walk back and covers the same distance in 50 minute. What is the average speed of the girl.

Discussion

2545.	What are the effects of storms?
Answer» What are the effects of storms?

Discussion

2546.	What is foot candles.
Answer» What is foot candles.

Discussion

2547.	How does our clothing depend upon the weather conditions?
Answer» How does our clothing depend upon the weather conditions?

Discussion

2548.	Sound can travel through:
Answer» Sound can travel through:

Discussion

2549.	An object covered 40 meters in 2 seconds. Then, the average speed of the object is
Answer» An object covered 40 meters in 2 seconds. Then, the average speed of the object is

Discussion

2550.	State three features of moon and mercury that are similar. [3 MARKS]
Answer» State three features of moon and mercury that are similar. [3 MARKS]

Discussion

Explore topic-wise InterviewSolutions in .

Figure shows four cells on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.

A refractive index of a medium wrt air is n=root2 find the criticle angle between the two medium

In which direction does air exerts pressure?

Which one of the following hypothetical heat engine cycles represents maximum efficiency ?

Which one of the following is/are true about electricity?

A potentiometer wire has length 4 m and resistance8 Ω . The resistance that must be connected inseries with the wire and an accumulator of e.m.f.2 V, so as to get a potential gradient 1 mV per cmon the wire isAIPMT-2015\rbrack(1) 48Ω (3) 40 Ω (2) 32Ω (4) 44 Ω

13. A particle of mass m approaches earth from a great distance with initial speed root of GM/R, where M and R are mass of earth and radius of earth, respectively. If the particle passes off tangentially to the earth's surface, the value of b is K times R. Find K.

Current i is being carried in infinite wire passing through origin alond direction I+J+k. Find the magnetic field due to the wire at (1m,0,0)

The motion of a coin over the carrom board is :

Explain the function of a switch in an electric circuit? [2 MARKS]

The area of a square of side 14 cm will be:

Find the volume of wire up to proper significant figures. The radius and length of wire are 0.46&21.7cm respectively

Sir/Ma'am Can you give me the examples of conduction in liquid, solids and gases and convection in liquids and gases and also some examples of radiation.

Why is it advised not to hold the thermometer by its bulb while reading it?

Write five difference between a M.C.B and a Fuse?

Degree of indeterminacy of the pin jointed frame given below is:2

113.A boy has to go 50 m due north, 40 m due east and 20 m due south to reach school. What is his displacement?

A car, moving with speed 108 km/h on a straight road, decreases its speed uniformly to 90 km/h in 5 seconds. The displacement of the car in the last second of its motion, before it comes to a halt, is

Question 8 (c) When current is switched ‘on’ in a room heater, it ___.

If a rock is brought to Earth from the surface of the moon, then __

A 1 cm object is placed perpendicular to the principal axis of a convex mirror of focal length 7.5 cm. Find its distance from the mirror if the image formed is 0.6 cm in size.

Two masses m_{1 }and m_2 are connected by light rod of length l . If rod is rotating about an axis with angular speed ω . Such that its kinetic energy is minimum then its K.E. i

When heat flows through a hot body to a cold body does the atoms get exchanged of the bodies

What is lcr circuit? Explain with diagram.

A solid sphere with a cavity, just floats in water. The volume of sphere is V and relative density of material of sphere is 2. The volume of cavity is

Units of work done is ________.

Rainbow is formed due to totlal internal reflection or due to refraction and scattering

Which of following statement(s) is/are true with respect to a prism if 'i' is the incident light ray and the dotted line shows the normal to the point where light strikes?

In a given thermometer, there are 100 major divisions between the freezing point and boiling point of water. Each major division is equal to 5 minor divisions. What is the minimum temperature above the freezing point of water that can be captured by the thermometer?

Which of the following is/are NOT a magnetic material?

State reasons for the following statements:(a) Tap water conducts electricity, whereas distilled water does not.(b) During the summer season, a milkman usually adds a very small amount of baking soda to fresh milk.

In a Brayton cycle, maximum and minimum temperatures are 1300 K and 295 K respectively. If the compressor and turbine efficiencies are 0.88 and 0.92 respectively, the optimum pressure ratio for maximum work output is _____9.26

In a young’s double slit arrangement, two very narrow slits are spaced d=1.8μm apart and are placed D=35 cm from a screen. The arrangement is illuminated with coherent light with wavelength λ=540nm. Choose the correct statement(s)

identify the phenomenon occurring in the image below.

How to do problems based on temperature inversion of thermocouple

A series circuit is also known as

Question 2 (v) State whether the following statement is true or false. Bar magnets always point towards North-South direction.

A thermos flask prevents loss of heat bya. conductionb. convectionc. radiationd. all of these

Identify the name of the device that can be used to test whether an object is carrying a charge or not. When a charged body is brought near the object the two thin leaves attached to the rod move away from each other indicating a presence of charge.

Question 15Draw figure showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.

a) Renna walks a distance of 2 km in 40 minute. Find her speed.b) If the girl walk back and covers the same distance in 50 minute. What is the average speed of the girl.

What are the effects of storms?

What is foot candles.

How does our clothing depend upon the weather conditions?

Sound can travel through:

An object covered 40 meters in 2 seconds. Then, the average speed of the object is

State three features of moon and mercury that are similar. [3 MARKS]