9478 + Interview Questions in Physics Page 155 InterviewSolution

7701.	Give various examples to show that friction is both a friend and a foe. [3 MARKS]
Answer» Give various examples to show that friction is both a friend and a foe. [3 MARKS]

Discussion

7702.	How much thrust will be required to exert a pressure of 20000 Pa on an area of 1 cm2?
Answer» How much thrust will be required to exert a pressure of $20000 P a$ on an area of $1 c m^{2}$ ?

Discussion

7703.	Each time the heart beats, it requires 5 J of energy. If it beats 72 times in one minute, then the power consumed by the heart is:
Answer» Each time the heart beats, it requires $5 J$ of energy. If it beats 72 times in one minute, then the power consumed by the heart is:

Discussion

7704.	During a thunderstorm which of the following actions might not be a safe practice?
Answer» During a thunderstorm which of the following actions might not be a safe practice?

Discussion

7705.	Select the factors that affect rusting.
Answer» Select the factors that affect rusting.

Discussion

7706.	What is force of friction
Answer» What is force of friction

Discussion

7707.	What is relative motion. What is frictional force
Answer» What is relative motion. What is frictional force

Discussion

7708.	What is seismic focus or hypocentre?
Answer» What is seismic focus or hypocentre?

Discussion

7709.	What is the function of the following - a - pupil b- cornea c- retina d- iris e - eye lids d- optic nerve d- siliary muscles
Answer» What is the function of the following - a - pupil b- cornea c- retina d- iris e - eye lids d- optic nerve d- siliary muscles

7709.

What is the function of the following - a - pupil b- cornea c- retina d- iris e - eye lids d- optic nerve d- siliary muscles

Answer»

What is the function of the following -

a - pupil

b- cornea

c- retina

d- iris

e - eye lids

d- optic nerve

d- siliary muscles

Discussion

7710.	In which season of the year is the constellation Orion visible in the sky?
Answer» In which season of the year is the constellation Orion visible in the sky?

Discussion

7711.	What are meteorites?
Answer» What are meteorites?

Discussion

7712.	Which planet is depicted in the picture?
Answer» Which planet is depicted in the picture?

7712.

Which planet is depicted in the picture?

Answer»

Which planet is depicted in the picture?

Discussion

7713.	Which of the following is an active electrode?
Answer» Which of the following is an active electrode?

Discussion

7714.	A ball of mass 2 kg is raised to the height of 60 m and then dropped from the top. In this case, the quantity which has different magnitude from the other given quantities is
Answer» A ball of mass 2 kg is raised to the height of 60 m and then dropped from the top. In this case, the quantity which has different magnitude from the other given quantities is

Discussion

7715.	Neha has to push a lighter box and Sohit has to push a heavier box on the same floor. Who will apply a larger force on the box?
Answer» Neha has to push a lighter box and Sohit has to push a heavier box on the same floor. Who will apply a larger force on the box?

Discussion

7716.	Why fish dips into fresh water compared to marine water
Answer» Why fish dips into fresh water compared to marine water

Discussion

7717.	Three measuring rods are 50 cm, 1m and 1.2 m in length. What is the least length of cloth that can be measured exact number of times, using any of the rods?
Answer» Three measuring rods are 50 cm, 1m and 1.2 m in length. What is the least length of cloth that can be measured exact number of times, using any of the rods?

Discussion

7718.	How many kgs of milk can be poured in a jar that contain 0.5 kg of water? Given density of milk is 1040 kg/m^3.
Answer» How many kgs of milk can be poured in a jar that contain 0.5 kg of water? Given density of milk is 1040 kg/m^3.

Discussion

7719.	What is meant by 'dispersion of light '? Name a natural phenomenon which is caused by the dispersion of sunlight in the sky.
Answer» What is meant by 'dispersion of light '? Name a natural phenomenon which is caused by the dispersion of sunlight in the sky.

Discussion

7720.	The lens focuses light on the back of the eye, on a layer known as
Answer» The lens focuses light on the back of the eye, on a layer known as

Discussion

7721.	Find the area of a body which experiences a pressure of 50,000 Pa by a thrust of 100 N.
Answer» Find the area of a body which experiences a pressure of 50,000 Pa by a thrust of 100 N.

Discussion

7722.	Calculate the pressure developed by a force of 50 N acting on an area of 10 m2.
Answer» Calculate the pressure developed by a force of $50 N$ acting on an area of ${10 m}^{2}$ .

Discussion

7723.	When will the force of friction acting on a moving car be more -on rainy day or sunny day
Answer» When will the force of friction acting on a moving car be more -on rainy day or sunny day

Discussion

7724.	A total solar eclipse occurs when
Answer» A total solar eclipse occurs when

Discussion

7725.	How to find the value of √3.
Answer» How to find the value of √3.

Discussion

7726.	A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and the air is 150km. Calculate the average speed and average velocity of flight and car. Answer in the given order (in km/hr ): Find the Average speed of Flight, Average velocity of flight, Average speed of car, Average velocity of car.
Answer» A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and the air is 150km. Calculate the average speed and average velocity of flight and car. Answer in the given order (in $k m / h r$ ): Find the Average speed of Flight, Average velocity of flight, Average speed of car, Average velocity of car.

7726.

A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and the air is 150km. Calculate the average speed and average velocity of flight and car. Answer in the given order (in km/hr ): Find the Average speed of Flight, Average velocity of flight, Average speed of car, Average velocity of car.

Answer»

A car takes 4hrs to travel from Bangalore to Chennai whereas the flight takes only 30min to travel from Bangalore to Chennai. If the distance from Bangalore to Chennai by road is 400km and the air is 150km. Calculate the average speed and average velocity of flight and car.

Answer in the given order (in $k m / h r$ ):

Find the Average speed of Flight, Average velocity of flight, Average speed of car, Average velocity of car.

Discussion

7727.	A particle moves 3m north, then 4m east and finally 6m south. Which of the following is correct about the distance travelled and the displacement?
Answer» A particle moves 3m north, then 4m east and finally 6m south. Which of the following is correct about the distance travelled and the displacement?

Discussion

7728.	What is the name of 'special shape' which is given to objects moving through the air (or water) to reduce drag?
Answer» What is the name of 'special shape' which is given to objects moving through the air (or water) to reduce drag?

Discussion

7729.	Why are treads made on the surface of tyres?
Answer» Why are treads made on the surface of tyres?

Discussion

7730.	Why is the longer wire of an led bulb connected to the positive terminal of the cell or battery(why can't it be connected to the negative terminal)?
Answer» Why is the longer wire of an led bulb connected to the positive terminal of the cell or battery(why can't it be connected to the negative terminal)?

Discussion

7731.	During propagation of a wave which of the following quantity is transferred?
Answer» During propagation of a wave which of the following quantity is transferred?

Discussion

7732.	What is Po + hdg in fluid pressure ? May l get the simpler operation on this formula?
Answer» What is P_o+ hdg in fluid pressure ? May l get the simpler operation on this formula?

Discussion

7733.	What is Electrons
Answer» What is Electrons

Discussion

7734.	Why bursting of balloons create a lot of sound and how it is similar to thunder?
Answer» Why bursting of balloons create a lot of sound and how it is similar to thunder?

Discussion

7735.	How much momentum does a dumbbell of mass 10 kg transfer to the floor if it falls from a height of 80 cm (assume that the dumbbell stops after hitting the ground, and take g=10 ms−2)?
Answer» How much momentum does a dumbbell of mass $10 k g$ transfer to the floor if it falls from a height of $80 c m$ (assume that the dumbbell stops after hitting the ground, and take $g = 10 m s^{- 2}$ )?

Discussion

7736.	294 blue balls, 252 pink balls, and 210 yellow balls were distributed equally among some students with none left over. What is the biggest possible number of students?
Answer» 294 blue balls, 252 pink balls, and 210 yellow balls were distributed equally among some students with none left over. What is the biggest possible number of students?

Discussion

7737.	The density of copper is 9 g/cm3. Then the volume of 90 g copper is
Answer» The density of copper is 9 g/cm3. Then the volume of 90 g copper is

Discussion

7738.	A patient suffering from high fever is advised to put wet cloth strips on his forehead. Why?
Answer» A patient suffering from high fever is advised to put wet cloth strips on his forehead. Why?

Discussion

7739.	Why is aqueous sodium chloride better electrolyte than acetic acid?
Answer» Why is aqueous sodium chloride better electrolyte than acetic acid?

Discussion

7740.	It is difficult to move a cycle with breaks because ____________.
Answer» It is difficult to move a cycle with breaks because ____________.

Discussion

7741.	When a plastic comb is rubbed with dry hair, it acquires some charges due to which it attracts tiny pieces of paper. But when a plastic comb is rubbed with wet or oiled hair the same does not happen. Why?
Answer» When a plastic comb is rubbed with dry hair, it acquires some charges due to which it attracts tiny pieces of paper. But when a plastic comb is rubbed with wet or oiled hair the same does not happen. Why?

Discussion

7742.	Why and How do the wheels of a vehicle slows and stop when the brake shoe is pressed?
Answer» Why and How do the wheels of a vehicle slows and stop when the brake shoe is pressed?

Discussion

7743.	why does the ink from the fountain pen leak at higher altitude
Answer» why does the ink from the fountain pen leak at higher altitude

Discussion

7744.	What dampens the energy ofa rolling ball? A)friction B)wind C)repulsion D)round shape of a ball
Answer» What dampens the energy ofa rolling ball? A)friction B)wind C)repulsion D)round shape of a ball

Discussion

7745.	Pick the correctly punctuated form of the sentence. is it possible to explore the vast expanse of the universe and traverse galaxies beyond the comprehension of a human mind
Answer» Pick the correctly punctuated form of the sentence. is it possible to explore the vast expanse of the universe and traverse galaxies beyond the comprehension of a human mind

7745.

Pick the correctly punctuated form of the sentence. is it possible to explore the vast expanse of the universe and traverse galaxies beyond the comprehension of a human mind

Answer»

Pick the correctly punctuated form of the sentence.

is it possible to explore the vast expanse of the universe and traverse galaxies beyond the comprehension of a human mind

Discussion

7746.	Average velocity is _____.
Answer» Average velocity is _____.

Discussion

7747.	A balloon filled with hydrogen rises in the air. Explain the reason.
Answer» A balloon filled with hydrogen rises in the air. Explain the reason.

Discussion

7748.	Name three important properties of light. [3 MARKS]
Answer» Name three important properties of light. [3 MARKS]

Discussion

7749.	Generally, the range of clinical thermometers is:
Answer» Generally, the range of clinical thermometers is:

Discussion

7750.	Make the mirror image of the diagram and then make a final image after overlapping it on the mirror image. [3 MARKS]
Answer» Make the mirror image of the diagram and then make a final image after overlapping it on the mirror image. [3 MARKS]

7750.

Make the mirror image of the diagram and then make a final image after overlapping it on the mirror image. [3 MARKS]

Answer»

Make the mirror image of the diagram and then make a final image after overlapping it on the mirror image. [3 MARKS]

Discussion

Explore topic-wise InterviewSolutions in .

Give various examples to show that friction is both a friend and a foe. [3 MARKS]

How much thrust will be required to exert a pressure of 20000 Pa on an area of 1 cm2?

Each time the heart beats, it requires 5 J of energy. If it beats 72 times in one minute, then the power consumed by the heart is:

During a thunderstorm which of the following actions might not be a safe practice?

Select the factors that affect rusting.

What is force of friction

What is relative motion. What is frictional force

What is seismic focus or hypocentre?

What is the function of the following - a - pupil b- cornea c- retina d- iris e - eye lids d- optic nerve d- siliary muscles

In which season of the year is the constellation Orion visible in the sky?

What are meteorites?

Which planet is depicted in the picture?

Which of the following is an active electrode?

A ball of mass 2 kg is raised to the height of 60 m and then dropped from the top. In this case, the quantity which has different magnitude from the other given quantities is

Neha has to push a lighter box and Sohit has to push a heavier box on the same floor. Who will apply a larger force on the box?

Why fish dips into fresh water compared to marine water

Three measuring rods are 50 cm, 1m and 1.2 m in length. What is the least length of cloth that can be measured exact number of times, using any of the rods?

How many kgs of milk can be poured in a jar that contain 0.5 kg of water? Given density of milk is 1040 kg/m^3.

What is meant by 'dispersion of light '? Name a natural phenomenon which is caused by the dispersion of sunlight in the sky.

The lens focuses light on the back of the eye, on a layer known as

Find the area of a body which experiences a pressure of 50,000 Pa by a thrust of 100 N.

Calculate the pressure developed by a force of 50 N acting on an area of 10 m2.

When will the force of friction acting on a moving car be more -on rainy day or sunny day

A total solar eclipse occurs when

How to find the value of √3.

A particle moves 3m north, then 4m east and finally 6m south. Which of the following is correct about the distance travelled and the displacement?

What is the name of 'special shape' which is given to objects moving through the air (or water) to reduce drag?

Why are treads made on the surface of tyres?

Why is the longer wire of an led bulb connected to the positive terminal of the cell or battery(why can't it be connected to the negative terminal)?

During propagation of a wave which of the following quantity is transferred?

What is Po + hdg in fluid pressure ? May l get the simpler operation on this formula?

What is Electrons

Why bursting of balloons create a lot of sound and how it is similar to thunder?

How much momentum does a dumbbell of mass 10 kg transfer to the floor if it falls from a height of 80 cm (assume that the dumbbell stops after hitting the ground, and take g=10 ms−2)?

294 blue balls, 252 pink balls, and 210 yellow balls were distributed equally among some students with none left over. What is the biggest possible number of students?

The density of copper is 9 g/cm3. Then the volume of 90 g copper is

A patient suffering from high fever is advised to put wet cloth strips on his forehead. Why?

Why is aqueous sodium chloride better electrolyte than acetic acid?

It is difficult to move a cycle with breaks because ____________.

When a plastic comb is rubbed with dry hair, it acquires some charges due to which it attracts tiny pieces of paper. But when a plastic comb is rubbed with wet or oiled hair the same does not happen. Why?

Why and How do the wheels of a vehicle slows and stop when the brake shoe is pressed?

why does the ink from the fountain pen leak at higher altitude

What dampens the energy ofa rolling ball? A)friction B)wind C)repulsion D)round shape of a ball

Pick the correctly punctuated form of the sentence. is it possible to explore the vast expanse of the universe and traverse galaxies beyond the comprehension of a human mind

Average velocity is _____.

A balloon filled with hydrogen rises in the air. Explain the reason.

Name three important properties of light. [3 MARKS]

Generally, the range of clinical thermometers is:

Make the mirror image of the diagram and then make a final image after overlapping it on the mirror image. [3 MARKS]