6277 + Interview Questions in Physics Page 16 InterviewSolution

751.	Question 1 (b)Which of the following has more inertia:(b) a bicycle and a train?
Answer» Question 1 (b) Which of the following has more inertia: (b) a bicycle and a train?

Discussion

752.	What is declination? Draw a diagram to show the angle between the declination and true direction of geographic north.
Answer» What is declination? Draw a diagram to show the angle between the declination and true direction of geographic north.

Discussion

753.	Pressure exerted by a body is 8650pa, when it is placed on a wooden plank. If the area of contact is 2500cm sq. Find the weight of the body.
Answer» Pressure exerted by a body is 8650pa, when it is placed on a wooden plank. If the area of contact is 2500cm sq. Find the weight of the body.

Discussion

754.	What is the formula to find the volume of a cube?
Answer» What is the formula to find the volume of a cube?

Discussion

755.	In the arrangements A and B shown below, pins P and Q stick to an iron loop and an iron rod with the help of wax. In which case are the both pins likely to fall at different times? Explain.
Answer» In the arrangements A and B shown below, pins P and Q stick to an iron loop and an iron rod with the help of wax. In which case are the both pins likely to fall at different times? Explain.

Discussion

756.	Name two ways of change of liquid state to the vapour state and distinguish them
Answer» Name two ways of change of liquid state to the vapour state and distinguish them

Discussion

757.	40.What is ratio of currents flowing in resistor x and y?
Answer» 40.What is ratio of currents flowing in resistor x and y?

Discussion

758.	Explain giving examples.(a) Scalar quantity(b) Vector quantity
Answer» Explain giving examples. (a) Scalar quantity (b) Vector quantity

Discussion

759.	Question 15Name the petroleum product used as fuel for stoves, lamps and jet aircrafts.
Answer» Question 15 Name the petroleum product used as fuel for stoves, lamps and jet aircrafts.

Discussion

760.	Which part of the electric bell vibrates to produce the sound that we listen?
Answer» Which part of the electric bell vibrates to produce the sound that we listen?

Discussion

761.	Real image
Answer» Real image

Discussion

762.	a particle is moving in such a way that is position varies with time a t=3- root x, the particle will be found at rest at t equals?
Answer» a particle is moving in such a way that is position varies with time a t=3- root x, the particle will be found at rest at t equals?

Discussion

763.	A far off planet is estimated to be at a distance D from the earth. If its diametrically opposite extremes d subtend an angle theta at an observatory situated on earth, the approximate diameter of planet is
Answer» A far off planet is estimated to be at a distance D from the earth. If its diametrically opposite extremes d subtend an angle theta at an observatory situated on earth, the approximate diameter of planet is

Discussion

764.	16. What is the molarity of water in pure water ?
Answer» 16. What is the molarity of water in pure water ?

Discussion

765.	Is rectilinear motion periodic ?
Answer» Is rectilinear motion periodic ?

Discussion

766.	What is maximum and minimum temperature?
Answer» What is maximum and minimum temperature?

Discussion

767.	The circumference of a bicycle wheel is 132 cm. How many revolutions does it complete when it move a distance of 264 m?
Answer» The circumference of a bicycle wheel is 132 cm. How many revolutions does it complete when it move a distance of 264 m?

Discussion

768.	11. A uniform wire connected directly across a 220 V line produces heat H per second. If the wire is divided into n parts and all parts are connected in parallel across 220 V line, the heat produced per second will be
Answer» 11. A uniform wire connected directly across a 220 V line produces heat H per second. If the wire is divided into n parts and all parts are connected in parallel across 220 V line, the heat produced per second will be

Discussion

769.	36.Describe an an activity to show that sound travels faster through solids than through a gaseous medium.
Answer» 36.Describe an an activity to show that sound travels faster through solids than through a gaseous medium.

Discussion

770.	the position of particle along X-axis is given by X=4-2t+t^{2 }the speed of the particle is shown by which graph
Answer» the position of particle along X-axis is given by X=4-2t+t^{2 }the speed of the particle is shown by which graph

Discussion

771.	The volume of water required to fill the cuboid shaped water tank as shown is cu in.
Answer» The volume of water required to fill the cuboid shaped water tank as shown is cu in.

Discussion

772.	Is our sense of touch a reliable method in identifying how hot an object is? If not, what should be done to identify the same?
Answer» Is our sense of touch a reliable method in identifying how hot an object is? If not, what should be done to identify the same?

Discussion

773.	How can you make a magnet without electricity?
Answer» How can you make a magnet without electricity?

Discussion

774.	Volume of a cylinder=36cm3Then volume (in cm3) of a cone having sameheight and radius as that of the cylinder is12
Answer» $Volume of a cylinder = 36 c m^{3}$ $Then volume (in c m^{3}) of a cone having same$ $height and radius as that of the cylinder is$ 12

Discussion

775.	What are drought and famine? Explain in a few words.
Answer» What are drought and famine? Explain in a few words.

Discussion

776.	The temperature of a body rises by 1°C. What is the corresponding rise on the (a) Fahrenheit scale (b) Kelvin scale?
Answer» The temperature of a body rises by 1°C. What is the corresponding rise on the (a) Fahrenheit scale (b) Kelvin scale?

Discussion

777.	The pressure wave, P=0.01sin[1000t−3x] Nm−2, corresponds to the sound produced by a vibrating blade on a day when atmospheric temperature is 0∘C. On some other day when temperature is T, the speed of sound produced by the same blade and at the same frequency is found to be 336 ms−1. Approximate value of T is:
Answer» The pressure wave, $P = 0.01 sin [1000 t - 3 x] {Nm}^{- 2}$ , corresponds to the sound produced by a vibrating blade on a day when atmospheric temperature is $0^{\circ} C$ . On some other day when temperature is $T$ , the speed of sound produced by the same blade and at the same frequency is found to be $336 {ms}^{- 1}$ . Approximate value of $T$ is:

Discussion

778.	what is gravitational field
Answer» what is gravitational field

Discussion

779.	When light rays are passed through a prism, the phenomenon that occurs is known as ___________ of light.
Answer» When light rays are passed through a prism, the phenomenon that occurs is known as ___________ of light.

Discussion

780.	Calculate the buoyant force (in N) acting on a 250 g rubik's cube of side length 8 cm, if only half of it is submerged in kerosene. The rubik's cube is hanging by a thread. Density of kerosene is 0.8 g cm−3. Take g=10 m s−2.2.048
Answer» Calculate the buoyant force (in $N$ ) acting on a $250 g$ rubik's cube of side length $8 cm$ , if only half of it is submerged in kerosene. The rubik's cube is hanging by a thread. Density of kerosene is $0.8 g {cm}^{- 3}$ . Take $g = 10 m s^{- 2}$ . 2.048

Discussion

781.	When a magnet is broken down. then how two parts of magnet have their independent poles
Answer» When a magnet is broken down. then how two parts of magnet have their independent poles

Discussion

782.	The spectrum of sunlight consists of ___ prominent colours.
Answer» The spectrum of sunlight consists of ___ prominent colours.

Discussion

783.	A man is standing on turntable initially rotating with his hands stretched out.When he folds his hands, his kinetic energy increases due to his internal energy which he uses in folding his hands, so whether he will gain the energy when he will stretch his hands again or not? Explain.
Answer» A man is standing on turntable initially rotating with his hands stretched out.When he folds his hands, his kinetic energy increases due to his internal energy which he uses in folding his hands, so whether he will gain the energy when he will stretch his hands again or not? Explain.

Discussion

784.	find the distance b/w two position of a real object infront of a convex lens such that the size of img is 3 times the size of the object
Answer» find the distance b/w two position of a real object infront of a convex lens such that the size of img is 3 times the size of the object

Discussion

785.	Using a pinhole camera, an image of the given tree is captured. How will it look? Choose the correct image.
Answer» Using a pinhole camera, an image of the given tree is captured. How will it look? Choose the correct image.

Discussion

786.	For performing an experiment, a student was asked to choose one concave mirror and one convex lens from a lot of mirrors and lenses of different kinds. the correct procedure adopted by her will be:(1) To choose a mirror and lens which can form an enlarged and erect image of an object.(2) To choose a mirror which can form a diminished and erect image and a lens which can form an enlarged and erect image of the object.(3) To choose a mirror which can form an enlarged and erect image and a lens which can form a diminished and erect image of an object.(4) To choose a mirror and a lens which can form a diminished and erect image of an object.
Answer» For performing an experiment, a student was asked to choose one concave mirror and one convex lens from a lot of mirrors and lenses of different kinds. the correct procedure adopted by her will be: (1) To choose a mirror and lens which can form an enlarged and erect image of an object. (2) To choose a mirror which can form a diminished and erect image and a lens which can form an enlarged and erect image of the object. (3) To choose a mirror which can form an enlarged and erect image and a lens which can form a diminished and erect image of an object. (4) To choose a mirror and a lens which can form a diminished and erect image of an object.

Discussion

787.	Write answers to the following question.(a) How does a fever get lowered by putting a cold compress on the forehead of a patient ?(b) Why are the houses in Rajasthan painted white ?(c) What are the modes of heat transfer ?(d) Explain which mode of heat transfer causes sea breezes and land breezes.(e) Why is the outer coat of the penguins of Antarctica black ?(f) Why are heaters fitted near the floor and air conditioners, near the ceiling of a room ?
Answer» Write answers to the following question. (a) How does a fever get lowered by putting a cold compress on the forehead of a patient ? (b) Why are the houses in Rajasthan painted white ? (c) What are the modes of heat transfer ? (d) Explain which mode of heat transfer causes sea breezes and land breezes. (e) Why is the outer coat of the penguins of Antarctica black ? (f) Why are heaters fitted near the floor and air conditioners, near the ceiling of a room ?

Discussion

788.	A police Jeep is chasing a cheap riding on a bike speed of jeep is 24 m/s and that of bike is 20 m /s police Jeep is 200m behind the bike.what distance Jeep will cover to catch the bike
Answer» A police Jeep is chasing a cheap riding on a bike speed of jeep is 24 m/s and that of bike is 20 m /s police Jeep is 200m behind the bike.what distance Jeep will cover to catch the bike

Discussion

789.	15.A man walks 30m north and turns east direction.Now walks 20m east and turns south west and walks 30_/2 (30root2)m in south north direction. Then calculate the displacement?
Answer» 15.A man walks 30m north and turns east direction.Now walks 20m east and turns south west and walks 30_/2 (30root2)m in south north direction. Then calculate the displacement?

Discussion

790.	A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. What is the average speed of the car for this 80 km trip?(1)40km/h(2)45km/h(3)48km/h(4)53km/h
Answer» A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. What is the average speed of the car for this 80 km trip?(1)40km/h (2)45km/h (3)48km/h (4)53km/h

790.

A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. What is the average speed of the car for this 80 km trip?(1)40km/h(2)45km/h(3)48km/h(4)53km/h

Answer»

A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. What is the average speed of the car for this 80 km trip?(1)40km/h

(2)45km/h

(3)48km/h

(4)53km/h

Discussion

791.	What are conductors and insulators of heat? Explain with examples.
Answer» What are conductors and insulators of heat? Explain with examples.

Discussion

792.	The heat is flowing through two cylindrical rods of same material. The diameters of the rods are in the ratio 1 : 2 and their lengths are in the ratio 2 : 1. If the temperature difference between their ends is the same, the ratio of rate of flow of heat through them will be
Answer» The heat is flowing through two cylindrical rods of same material. The diameters of the rods are in the ratio 1 : 2 and their lengths are in the ratio 2 : 1. If the temperature difference between their ends is the same, the ratio of rate of flow of heat through them will be

792.

The heat is flowing through two cylindrical rods of same material. The diameters of the rods are in the ratio 1 : 2 and their lengths are in the ratio 2 : 1. If the temperature difference between their ends is the same, the ratio of rate of flow of heat through them will be

Answer»

The heat is flowing through two cylindrical rods of same material. The diameters of the rods are in the ratio 1 : 2 and their lengths are in the ratio 2 : 1. If the temperature difference between their ends is the same, the ratio of rate of flow of heat through them will be

Discussion

793.	Q1 Difference between convection radiation
Answer» Q1 Difference between convection radiation

Discussion

794.	A particle travels 5 m towards north direction then it travels 4 m towards east direction and then it travels 5\sqrt2 m towards south-west direction. Find the displacement of the particle and the direction of the particle
Answer» A particle travels 5 m towards north direction then it travels 4 m towards east direction and then it travels 5\sqrt2 m towards south-west direction. Find the displacement of the particle and the direction of the particle

Discussion

795.	Find the value of angle of reflection at plane mirror M2, when a ray of light is incident at M1 as shown in figure.
Answer» Find the value of angle of reflection at plane mirror $M_{2}$ , when a ray of light is incident at $M_{1}$ as shown in figure.

Discussion

796.	Which of the following is incorrect?1)Magnitude of instantaneous velocity is equal to instantaneous speed.2) Distance is always greater than or equal to displacement3) Distance covered can never decrease with time.4) Speed can never decrease with time
Answer» Which of the following is incorrect? 1)Magnitude of instantaneous velocity is equal to instantaneous speed. 2) Distance is always greater than or equal to displacement 3) Distance covered can never decrease with time. 4) Speed can never decrease with time

Discussion

797.	Vapour pressure thermometer and magnetic thermometer
Answer» Vapour pressure thermometer and magnetic thermometer

Discussion

798.	How do 2 perpendicular forces act on a body. How to draw diagram?
Answer» How do 2 perpendicular forces act on a body. How to draw diagram?

Discussion

799.	Consider a situation . A fish lies 40 cm under the surface of water ( u of water = 4/3) and 80 cm above concave spherical mirror whose radius of curvature is 120 cm . An observer looking down from above through the air see 2 images of the fish . Find the distance between these images.
Answer» Consider a situation . A fish lies 40 cm under the surface of water ( u of water = 4/3) and 80 cm above concave spherical mirror whose radius of curvature is 120 cm . An observer looking down from above through the air see 2 images of the fish . Find the distance between these images.

Discussion

800.	Statement I: Virtual image cannot be projected on a screen. Statement II: Divergent rays cannot form a real image.
Answer» Statement I: Virtual image cannot be projected on a screen. Statement II: Divergent rays cannot form a real image.

Discussion

Explore topic-wise InterviewSolutions in .

Question 1 (b)Which of the following has more inertia:(b) a bicycle and a train?

What is declination? Draw a diagram to show the angle between the declination and true direction of geographic north.

Pressure exerted by a body is 8650pa, when it is placed on a wooden plank. If the area of contact is 2500cm sq. Find the weight of the body.

What is the formula to find the volume of a cube?

In the arrangements A and B shown below, pins P and Q stick to an iron loop and an iron rod with the help of wax. In which case are the both pins likely to fall at different times? Explain.

Name two ways of change of liquid state to the vapour state and distinguish them

40.What is ratio of currents flowing in resistor x and y?

Explain giving examples.(a) Scalar quantity(b) Vector quantity

Question 15Name the petroleum product used as fuel for stoves, lamps and jet aircrafts.

Which part of the electric bell vibrates to produce the sound that we listen?

Real image

a particle is moving in such a way that is position varies with time a t=3- root x, the particle will be found at rest at t equals?

A far off planet is estimated to be at a distance D from the earth. If its diametrically opposite extremes d subtend an angle theta at an observatory situated on earth, the approximate diameter of planet is

16. What is the molarity of water in pure water ?

Is rectilinear motion periodic ?

What is maximum and minimum temperature?

The circumference of a bicycle wheel is 132 cm. How many revolutions does it complete when it move a distance of 264 m?

11. A uniform wire connected directly across a 220 V line produces heat H per second. If the wire is divided into n parts and all parts are connected in parallel across 220 V line, the heat produced per second will be

36.Describe an an activity to show that sound travels faster through solids than through a gaseous medium.

the position of particle along X-axis is given by X=4-2t+t^{2 }the speed of the particle is shown by which graph

The volume of water required to fill the cuboid shaped water tank as shown is cu in.

Is our sense of touch a reliable method in identifying how hot an object is? If not, what should be done to identify the same?

How can you make a magnet without electricity?

Volume of a cylinder=36cm3Then volume (in cm3) of a cone having sameheight and radius as that of the cylinder is12

What are drought and famine? Explain in a few words.

The temperature of a body rises by 1°C. What is the corresponding rise on the (a) Fahrenheit scale (b) Kelvin scale?

what is gravitational field

When light rays are passed through a prism, the phenomenon that occurs is known as ___________ of light.

Calculate the buoyant force (in N) acting on a 250 g rubik's cube of side length 8 cm, if only half of it is submerged in kerosene. The rubik's cube is hanging by a thread. Density of kerosene is 0.8 g cm−3. Take g=10 m s−2.2.048

When a magnet is broken down. then how two parts of magnet have their independent poles

The spectrum of sunlight consists of ___ prominent colours.

A man is standing on turntable initially rotating with his hands stretched out.When he folds his hands, his kinetic energy increases due to his internal energy which he uses in folding his hands, so whether he will gain the energy when he will stretch his hands again or not? Explain.

find the distance b/w two position of a real object infront of a convex lens such that the size of img is 3 times the size of the object

Using a pinhole camera, an image of the given tree is captured. How will it look? Choose the correct image.

A police Jeep is chasing a cheap riding on a bike speed of jeep is 24 m/s and that of bike is 20 m /s police Jeep is 200m behind the bike.what distance Jeep will cover to catch the bike

15.A man walks 30m north and turns east direction.Now walks 20m east and turns south west and walks 30_/2 (30root2)m in south north direction. Then calculate the displacement?

A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. What is the average speed of the car for this 80 km trip?(1)40km/h(2)45km/h(3)48km/h(4)53km/h

What are conductors and insulators of heat? Explain with examples.

The heat is flowing through two cylindrical rods of same material. The diameters of the rods are in the ratio 1 : 2 and their lengths are in the ratio 2 : 1. If the temperature difference between their ends is the same, the ratio of rate of flow of heat through them will be

Q1 Difference between convection radiation

A particle travels 5 m towards north direction then it travels 4 m towards east direction and then it travels 5\sqrt2 m towards south-west direction. Find the displacement of the particle and the direction of the particle

Find the value of angle of reflection at plane mirror M2, when a ray of light is incident at M1 as shown in figure.

Which of the following is incorrect?1)Magnitude of instantaneous velocity is equal to instantaneous speed.2) Distance is always greater than or equal to displacement3) Distance covered can never decrease with time.4) Speed can never decrease with time

Vapour pressure thermometer and magnetic thermometer

How do 2 perpendicular forces act on a body. How to draw diagram?

Consider a situation . A fish lies 40 cm under the surface of water ( u of water = 4/3) and 80 cm above concave spherical mirror whose radius of curvature is 120 cm . An observer looking down from above through the air see 2 images of the fish . Find the distance between these images.

Statement I: Virtual image cannot be projected on a screen. Statement II: Divergent rays cannot form a real image.