16569 + Interview Questions in Physics

1.	Which of the following radiations suffers maximum deflection in a magnetic field?
Answer» Which of the following radiations suffers maximum deflection in a magnetic field?

Discussion

2.	Question 65 The directions for a pain reliever recommend that an adult of 60 kg and over, takes 4 tablets every 4 hours as needed, and an adult who weighs between 40 kg and 50 kg takes only 212 tablets every 4 hours as needed. Each tablet weighs 425 gram (a) If a 72 kg adult takes 4 tablets, how many grams of pain reliever is he or she receiving? (b) How many grams of pain reliever is recommended dose for an adult weighing 46 kg?
Answer» Question 65 The directions for a pain reliever recommend that an adult of 60 kg and over, takes 4 tablets every 4 hours as needed, and an adult who weighs between 40 kg and 50 kg takes only $2 \frac{1}{2}$ tablets every 4 hours as needed. Each tablet weighs $\frac{4}{25}$ gram (a) If a 72 kg adult takes 4 tablets, how many grams of pain reliever is he or she receiving? (b) How many grams of pain reliever is recommended dose for an adult weighing 46 kg?

2.

Question 65 The directions for a pain reliever recommend that an adult of 60 kg and over, takes 4 tablets every 4 hours as needed, and an adult who weighs between 40 kg and 50 kg takes only 212 tablets every 4 hours as needed. Each tablet weighs 425 gram (a) If a 72 kg adult takes 4 tablets, how many grams of pain reliever is he or she receiving? (b) How many grams of pain reliever is recommended dose for an adult weighing 46 kg?

Answer»

Question 65

The directions for a pain reliever recommend that an adult of 60 kg and over, takes 4 tablets every 4 hours as needed, and an adult who weighs between 40 kg and 50 kg takes only $2 \frac{1}{2}$ tablets every 4 hours as needed. Each tablet weighs $\frac{4}{25}$ gram
(a) If a 72 kg adult takes 4 tablets, how many grams of pain reliever is he or she receiving?
(b) How many grams of pain reliever is recommended dose for an adult weighing 46 kg?

Discussion

3.	An object is viewed through a glass prism with its vertex pointing upwards. Draw a ray diagram to show the formation of its image seen by the observer.
Answer» An object is viewed through a glass prism with its vertex pointing upwards. Draw a ray diagram to show the formation of its image seen by the observer.

Discussion

4.	What is a couple?
Answer» What is a couple?

Discussion

5.	Calculate the amount of heat required to raise the temperature of 40 kg of compound from 10 ∘C to 35 ∘C . Specific heat capacity of the compound is 50 J/kg∘C.
Answer» Calculate the amount of heat required to raise the temperature of $40 k g$ of compound from $10^{\circ} C$ to $35^{\circ} C$ . Specific heat capacity of the compound is $50 J / k g^{\circ} C$ .

Discussion

6.	A body starts from rest and moving with an acceleration 5 ms–2. The velocity of the body when it covers a distance of 100 m (in ms–1) is
Answer» A body starts from rest and moving with an acceleration $5 {ms}^{- 2}$ . The velocity of the body when it covers a distance of $100 m$ (in ${ms}^{- 1}$ ) is

Discussion

7.	Identify the correct relation.
Answer» Identify the correct relation.

Discussion

8.	A lens forms a virtual and diminished image of an object placed at a distance of 2 m from it. The height of the image formed is half of that of the object. Which of the following statements is correct regarding the nature and focal length of the lens?
Answer» A lens forms a virtual and diminished image of an object placed at a distance of $2 m$ from it. The height of the image formed is half of that of the object. Which of the following statements is correct regarding the nature and focal length of the lens?

Discussion

9.	To find the image-distance for varying object-distances in case of a convex lens, a student obtains on a screen a sharp image of a bright object placed very far from the lens. After that he gradually moves the object towards the lens and each time focuses its image of the screen. (a) In which direction - towards or away from the lens, does he move the screen to focus the object? (b) What happens to the size of image - does it increase or decrease? (c) What happen when he moves the object very close to the lens?
Answer» To find the image-distance for varying object-distances in case of a convex lens, a student obtains on a screen a sharp image of a bright object placed very far from the lens. After that he gradually moves the object towards the lens and each time focuses its image of the screen. (a) In which direction - towards or away from the lens, does he move the screen to focus the object? (b) What happens to the size of image - does it increase or decrease? (c) What happen when he moves the object very close to the lens?

9.

To find the image-distance for varying object-distances in case of a convex lens, a student obtains on a screen a sharp image of a bright object placed very far from the lens. After that he gradually moves the object towards the lens and each time focuses its image of the screen. (a) In which direction - towards or away from the lens, does he move the screen to focus the object? (b) What happens to the size of image - does it increase or decrease? (c) What happen when he moves the object very close to the lens?

Answer»

To find the image-distance for varying object-distances in case of a convex lens, a student obtains on a screen a sharp image of a bright object placed very far from the lens. After that he gradually moves the object towards the lens and each time focuses its image of the screen.

(a) In which direction - towards or away from the lens, does he move the screen to focus the object?

(b) What happens to the size of image - does it increase or decrease?

(c) What happen when he moves the object very close to the lens?

Discussion

10.	In the circuit shown below, the voltmeter reads 10 V. (a) What is the combined resistance? (b) What current flows? (c) What is the p.d. across 2Ω resistor? (d) what is the p.d. across 3Ω resistor?
Answer» In the circuit shown below, the voltmeter reads 10 V. (a) What is the combined resistance? (b) What current flows? (c) What is the p.d. across $2 Ω$ resistor? (d) what is the p.d. across $3 Ω$ resistor?

Discussion

11.	Question 5 No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be (a) Plane (b) Concave (c) Convex (d) Either plane or convex
Answer» Question 5 No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be (a) Plane (b) Concave (c) Convex (d) Either plane or convex

Discussion

12.	Name the subjective property of light related to its wavelength
Answer» Name the subjective property of light related to its wavelength

Discussion

13.	Question 4 A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly (a) 1020 (b) 1016 (c) 1018 (d) 1023
Answer» Question 4 A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly (a) $10^{20}$ (b) $10^{16}$ (c) $10^{18}$ (d) $10^{23}$

Discussion

14.	In the figure given below, a coil is placed between two permanent magnets and it rotated with the help of an axle on which two rings R1 and R2 are internally attached. B1 and B2 represent metallic brushes. G represents the galvanometer. As the coil starts to rotate, the current flows through ABCD as shown. The coil starts rotation in:
Answer» In the figure given below, a coil is placed between two permanent magnets and it rotated with the help of an axle on which two rings R1 and R2 are internally attached. B1 and B2 represent metallic brushes. G represents the galvanometer. As the coil starts to rotate, the current flows through ABCD as shown. The coil starts rotation in:

14.

In the figure given below, a coil is placed between two permanent magnets and it rotated with the help of an axle on which two rings R1 and R2 are internally attached. B1 and B2 represent metallic brushes. G represents the galvanometer. As the coil starts to rotate, the current flows through ABCD as shown. The coil starts rotation in:

Answer»

In the figure given below, a coil is placed between two permanent magnets and it rotated with the help of an axle on which two rings R1 and R2 are internally attached. B1 and B2 represent metallic brushes. G represents the galvanometer.

As the coil starts to rotate, the current flows through ABCD as shown. The coil starts rotation in:

Discussion

15.	Chemically charcoal is:
Answer» Chemically charcoal is:

Discussion

16.	One important function of the Deflecting systems is
Answer» One important function of the Deflecting systems is

Discussion

17.	The resistance of a wire fo length 300 m and cross section area 1.0mm2 made of material of resistivity 1.0×10−7Ωm is (a) 2Ω (b) 3Ω (c) 20Ω (d) 30Ω
Answer» The resistance of a wire fo length 300 m and cross section area $1.0 m m^{2}$ made of material of resistivity $1.0 \times 10^{- 7} Ω m$ is (a) $2 Ω$ (b) $3 Ω$ (c) $20 Ω$ (d) $30 Ω$

Discussion

18.	The human eye is comprised of a ________ lens.
Answer» The human eye is comprised of a ________ lens.

Discussion

19.	How is an electromagnet made? Name two factors on which the strength of magnetic field of the electromagnet depends.
Answer» How is an electromagnet made? Name two factors on which the strength of magnetic field of the electromagnet depends.

Discussion

20.	What are fossil fuels and how are they formed? Describe, in brief two methods of determining the age of fossils
Answer» What are fossil fuels and how are they formed? Describe, in brief two methods of determining the age of fossils

Discussion

21.	The power of a motor pump in your neighbour's house is 20 W. How much water can be pumped per minute to raise the height to 10 m ? Take g=10 ms−1.
Answer» The power of a motor pump in your neighbour's house is $20 W$ . How much water can be pumped per minute to raise the height to $10 m$ ? Take $g = 10 m s^{- 1} .$

21.

The power of a motor pump in your neighbour's house is 20 W. How much water can be pumped per minute to raise the height to 10 m ? Take g=10 ms−1.

Answer»

The power of a motor pump in your neighbour's house is $20 W$ . How much water can be pumped per minute to raise the height to $10 m$ ?

Take $g = 10 m s^{- 1} .$

Discussion

22.	What will be the angle of refraction when the refracted ray passes along the surface of water or any other denser medium ?
Answer» What will be the angle of refraction when the refracted ray passes along the surface of water or any other denser medium ?

Discussion

23.	Calculate the approximate atomic mass of oxygen atom 168O in the order of 10−26.2.672
Answer» Calculate the approximate atomic mass of oxygen atom $168 O$ in the order of $10^{- 26}$ . 2.672

Discussion

24.	An electric generator works on the principle of ___.
Answer» An electric generator works on the principle of ___.

Discussion

25.	The temperature of water at the surface of a deep lake is 2∘ C. The temperature expected at the bottom is _____.
Answer» The temperature of water at the surface of a deep lake is $2^{\circ} C$ . The temperature expected at the bottom is _____.

Discussion

26.	Sole for x:2x2+6root3x-60=0
Answer» Sole for x:2x²+6root3x-60=0

Discussion

27.	At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to size of the object.
Answer» At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to size of the object.

Discussion

28.	What would happen if voltmeter and ammeter position sre interchange in an electric circuit
Answer» What would happen if voltmeter and ammeter position sre interchange in an electric circuit

Discussion

29.	An example of a renewable source of energy is: (a) petrol (b) natural gas (c) biogas (d) kerosene
Answer» An example of a renewable source of energy is: (a) petrol (b) natural gas (c) biogas (d) kerosene

Discussion

30.	What is the meaning of induced magnetic field?
Answer» What is the meaning of induced magnetic field?

Discussion

31.	Four 60 W, 230 V bulbs are connected between the phase and the neutral as shown in the diagram. Line voltage is 230 V. How are the bulbs B3 and B4 and B1 and B2 connected?
Answer» Four 60 W, 230 V bulbs are connected between the phase and the neutral as shown in the diagram. Line voltage is 230 V. How are the bulbs $B_{3} a n d B_{4}$ and $B_{1} a n d B_{2}$ connected?

31.

Four 60 W, 230 V bulbs are connected between the phase and the neutral as shown in the diagram. Line voltage is 230 V. How are the bulbs B3 and B4 and B1 and B2 connected?

Answer»

Four 60 W, 230 V bulbs are connected between the phase and the neutral as shown in the diagram. Line voltage is 230 V.

How are the bulbs $B_{3} a n d B_{4}$ and $B_{1} a n d B_{2}$ connected?

Discussion

32.	A diverging lens of focal length 20 cm and a converging mirror of focal length 10 cm are placed coaxially at a separation of 5 cm. Where should an object be placed so that a real image is formed at the object itself ?
Answer» A diverging lens of focal length 20 cm and a converging mirror of focal length 10 cm are placed coaxially at a separation of 5 cm. Where should an object be placed so that a real image is formed at the object itself ?

Discussion

33.	What among the following will conduct electricity?
Answer» What among the following will conduct electricity?

Discussion

34.	Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class. (a) Is she short-sighted or long-sighted ? (b) What type of lenses-converging or diverging-would an optician prescribe for her ?
Answer» Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class. (a) Is she short-sighted or long-sighted ? (b) What type of lenses-converging or diverging-would an optician prescribe for her ?

Discussion

35.	If we fill a tank with water to a height of 12.5 cm, the apparent depth of a needle lying at the bottom of the tank is measured to be 9.4 cm. What is the refractive index of water?
Answer» If we fill a tank with water to a height of 12.5 cm, the apparent depth of a needle lying at the bottom of the tank is measured to be 9.4 cm. What is the refractive index of water?

Discussion

36.	An object 0.5 m tall is in front of a plane mirror at a distance of 0.2 m. The size of the image formed is-
Answer» An object 0.5 m tall is in front of a plane mirror at a distance of 0.2 m. The size of the image formed is-

Discussion

37.	While doing experiments with the help of spherical mirror why do we always need a screen can't we simply put the object of which we want the image to be formed infront of the spherical mirror....
Answer» While doing experiments with the help of spherical mirror why do we always need a screen can't we simply put the object of which we want the image to be formed infront of the spherical mirror....

Discussion

38.	The ratio of the energy required to raise a satellite up to a height R (radius of earth) from the surface of earth to that required to put it into orbit there is
Answer» The ratio of the energy required to raise a satellite up to a height R (radius of earth) from the surface of earth to that required to put it into orbit there is

Discussion

39.	Q60) Indian Space Research Organization (ISRO) has successfully launched 6 satellites of Singapore into Space using the Polar Satellite Launch Vehicle (PSLV) C29 .Consider the following statements: 1) PSLV was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into Sun synchronous orbits. 2) PSLV can also launch small size satellites into geostationary transfer orbit (GTO). Which of the above statement(s) is/are incorrect?
Answer» Q60) Indian Space Research Organization (ISRO) has successfully launched 6 satellites of Singapore into Space using the Polar Satellite Launch Vehicle (PSLV) C29 .Consider the following statements: 1) PSLV was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into Sun synchronous orbits. 2) PSLV can also launch small size satellites into geostationary transfer orbit (GTO). Which of the above statement(s) is/are incorrect?

39.

Q60) Indian Space Research Organization (ISRO) has successfully launched 6 satellites of Singapore into Space using the Polar Satellite Launch Vehicle (PSLV) C29 .Consider the following statements: 1) PSLV was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into Sun synchronous orbits. 2) PSLV can also launch small size satellites into geostationary transfer orbit (GTO). Which of the above statement(s) is/are incorrect?

Answer»

Q60) Indian Space Research Organization (ISRO) has successfully launched 6 satellites of Singapore into Space using the Polar Satellite Launch Vehicle (PSLV) C29 .Consider the following statements:

1) PSLV was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into Sun synchronous orbits.

2) PSLV can also launch small size satellites into geostationary transfer orbit (GTO).

Which of the above statement(s) is/are incorrect?

Discussion

40.	What is the relationship between voltage , watt and joule and how can we convert three units in repsectibr of their forms like how can we convert volt into watt how can we convert joule into volt?? Like this
Answer» What is the relationship between voltage , watt and joule and how can we convert three units in repsectibr of their forms like how can we convert volt into watt how can we convert joule into volt?? Like this

Discussion

41.	Upto what maximum distance from the pole the image in a convex mirror can be obtained ? What will be the location of object then ?
Answer» Upto what maximum distance from the pole the image in a convex mirror can be obtained ? What will be the location of object then ?

Discussion

42.	For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly?
Answer» For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly?

42.

For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly?

Answer»

For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly?

Discussion

43.	Brandon Stark saw some suspicious activity at the terrace of a tower. When he reached there, he saw some thieves and hurried back to inform his father. Accidentally, he fell from the top of the tower and landed on the ground exactly 2 seconds later. Find the height of the tower. g=10m/s2
Answer» Brandon Stark saw some suspicious activity at the terrace of a tower. When he reached there, he saw some thieves and hurried back to inform his father. Accidentally, he fell from the top of the tower and landed on the ground exactly 2 seconds later. Find the height of the tower. $g = 10 m / s^{2}$

43.

Brandon Stark saw some suspicious activity at the terrace of a tower. When he reached there, he saw some thieves and hurried back to inform his father. Accidentally, he fell from the top of the tower and landed on the ground exactly 2 seconds later. Find the height of the tower. g=10m/s2

Answer»

Brandon Stark saw some suspicious activity at the terrace of a tower. When he reached there, he saw some thieves and hurried back to inform his father. Accidentally, he fell from the top of the tower and landed on the ground exactly 2 seconds later. Find the height of the tower.

$g = 10 m / s^{2}$

Discussion

44.	Why the filament of bulb has high melting point?
Answer» Why the filament of bulb has high melting point?

Discussion

45.	What would be the colour of sky if earth had no atmosphere and why?
Answer» What would be the colour of sky if earth had no atmosphere and why?

Discussion

46.	I saw a question that a person is suffering from myopia and he has a far point of 80cm. In its solution it is mentioned that the object distance is infinity. How come it be?
Answer» I saw a question that a person is suffering from myopia and he has a far point of 80cm. In its solution it is mentioned that the object distance is infinity. How come it be?

Discussion

47.	Do black holes have any limit of attraction?
Answer» Do black holes have any limit of attraction?

Discussion

48.	What do you mean by charging? How are secondary cells charged?
Answer» What do you mean by charging? How are secondary cells charged?

Discussion

49.	What is the power of a convex lens of focal length 0.5 m?
Answer» What is the power of a convex lens of focal length 0.5 m?

Discussion

50.	The wire of an electric kettle carries a current of 10 mA. What is the total number of electrons passing through the wire in 10 minutes?
Answer» The wire of an electric kettle carries a current of 10 mA. What is the total number of electrons passing through the wire in 10 minutes?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following radiations suffers maximum deflection in a magnetic field?

An object is viewed through a glass prism with its vertex pointing upwards. Draw a ray diagram to show the formation of its image seen by the observer.

What is a couple?

Calculate the amount of heat required to raise the temperature of 40 kg of compound from 10 ∘C to 35 ∘C . Specific heat capacity of the compound is 50 J/kg∘C.

A body starts from rest and moving with an acceleration 5 ms–2. The velocity of the body when it covers a distance of 100 m (in ms–1) is

Identify the correct relation.

A lens forms a virtual and diminished image of an object placed at a distance of 2 m from it. The height of the image formed is half of that of the object. Which of the following statements is correct regarding the nature and focal length of the lens?

In the circuit shown below, the voltmeter reads 10 V. (a) What is the combined resistance? (b) What current flows? (c) What is the p.d. across 2Ω resistor? (d) what is the p.d. across 3Ω resistor?

Question 5 No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be (a) Plane (b) Concave (c) Convex (d) Either plane or convex

Name the subjective property of light related to its wavelength

Question 4 A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly (a) 1020 (b) 1016​​​​​​​ (c) 1018​​​​​​​ (d) 1023​​​​​​​

Chemically charcoal is:

One important function of the Deflecting systems is

The resistance of a wire fo length 300 m and cross section area 1.0mm2 made of material of resistivity 1.0×10−7Ωm is (a) 2Ω (b) 3Ω (c) 20Ω (d) 30Ω

The human eye is comprised of a ________ lens.

How is an electromagnet made? Name two factors on which the strength of magnetic field of the electromagnet depends.

What are fossil fuels and how are they formed? Describe, in brief two methods of determining the age of fossils

The power of a motor pump in your neighbour's house is 20 W. How much water can be pumped per minute to raise the height to 10 m ? Take g=10 ms−1.

What will be the angle of refraction when the refracted ray passes along the surface of water or any other denser medium ?

Calculate the approximate atomic mass of oxygen atom 168O in the order of 10−26.2.672

An electric generator works on the principle of ___.

The temperature of water at the surface of a deep lake is 2∘ C. The temperature expected at the bottom is _____.

Sole for x:2x2+6root3x-60=0

At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to size of the object.

What would happen if voltmeter and ammeter position sre interchange in an electric circuit

An example of a renewable source of energy is: (a) petrol (b) natural gas (c) biogas (d) kerosene

What is the meaning of induced magnetic field?

Four 60 W, 230 V bulbs are connected between the phase and the neutral as shown in the diagram. Line voltage is 230 V. How are the bulbs B3 and B4 and B1 and B2 connected?

A diverging lens of focal length 20 cm and a converging mirror of focal length 10 cm are placed coaxially at a separation of 5 cm. Where should an object be placed so that a real image is formed at the object itself ?

What among the following will conduct electricity?

Your friend can read a book perfectly well but cannot read the writing on blackboard unless she sits on the front row in class. (a) Is she short-sighted or long-sighted ? (b) What type of lenses-converging or diverging-would an optician prescribe for her ?

If we fill a tank with water to a height of 12.5 cm, the apparent depth of a needle lying at the bottom of the tank is measured to be 9.4 cm. What is the refractive index of water?

An object 0.5 m tall is in front of a plane mirror at a distance of 0.2 m. The size of the image formed is-

While doing experiments with the help of spherical mirror why do we always need a screen can't we simply put the object of which we want the image to be formed infront of the spherical mirror....

The ratio of the energy required to raise a satellite up to a height R (radius of earth) from the surface of earth to that required to put it into orbit there is

What is the relationship between voltage , watt and joule and how can we convert three units in repsectibr of their forms like how can we convert volt into watt how can we convert joule into volt?? Like this

Upto what maximum distance from the pole the image in a convex mirror can be obtained ? What will be the location of object then ?

For a simple pendulum, a graph is plotted between its kinetic energy (KE) and potential energy (PE) against its displacement d. Which one of the following represents these correctly?

Brandon Stark saw some suspicious activity at the terrace of a tower. When he reached there, he saw some thieves and hurried back to inform his father. Accidentally, he fell from the top of the tower and landed on the ground exactly 2 seconds later. Find the height of the tower. g=10m/s2

Why the filament of bulb has high melting point?

What would be the colour of sky if earth had no atmosphere and why?

I saw a question that a person is suffering from myopia and he has a far point of 80cm. In its solution it is mentioned that the object distance is infinity. How come it be?

Do black holes have any limit of attraction?

What do you mean by charging? How are secondary cells charged?

What is the power of a convex lens of focal length 0.5 m?

The wire of an electric kettle carries a current of 10 mA. What is the total number of electrons passing through the wire in 10 minutes?

Question 4 A current of 1 A is drawn by a filament of an electric bulb. Number of electrons passing through a cross-section of the filament in 16 seconds would be roughly (a) 1020 (b) 1016 (c) 1018 (d) 1023