9478 + Interview Questions in Physics Page 133 InterviewSolution

6601.	A sound wave is different than a light wave in that a sound wave is
Answer» A sound wave is different than a light wave in that a sound wave is

Discussion

6602.	Noise pollution causes:
Answer» Noise pollution causes:

6602.

Noise pollution causes:

Answer»

Noise pollution causes:

Discussion

6603.	Which of the following is not a state variable?
Answer» Which of the following is not a state variable?

Discussion

6604.	Question 7 The first of a month is the new moon day. On fifteenth of the same month, which of the following figures would represent the phase of the moon? (a) (b) (c) (d)
Answer» Question 7 The first of a month is the new moon day. On fifteenth of the same month, which of the following figures would represent the phase of the moon? (a) (b) (c) (d)

Discussion

6605.	Which of the following is incorrect?
Answer» Which of the following is incorrect?

Discussion

6606.	The loudness of a sound is 8 db when the amplitude of vibrations is 2 units. If the amplitude is increased to 8 units, find the loudness of the sound in db. [3 MARKS]
Answer» The loudness of a sound is 8 db when the amplitude of vibrations is 2 units. If the amplitude is increased to 8 units, find the loudness of the sound in db. [3 MARKS]

Discussion

6607.

Match the following: [5 MARKS] Column I Column II (a) A plane mirror (i) Used as a magnifying glass. (b) A convex mirror (ii) Can form the image of objects spread over a large area. (c) A convex lens (iii) Used by dentists to see an enlarged image of teeth. (d) A concave mirror (iv) The image is always inverted and magnified. (e) A concave lens (v) The image is erect and of the same size as the object. (vi) The image is erect and smaller in size than the object.

Answer»

Match the following: [5 MARKS]

Column I	Column II
(a) A plane mirror	(i) Used as a magnifying glass.
(b) A convex mirror	(ii) Can form the image of objects spread over a large area.
(c) A convex lens	(iii) Used by dentists to see an enlarged image of teeth.
(d) A concave mirror	(iv) The image is always inverted and magnified.
(e) A concave lens	(v) The image is erect and of the same size as the object.
	(vi) The image is erect and smaller in size than the object.

Discussion

6608.	What is the difference between electronics and electrical?
Answer» What is the difference between electronics and electrical?

Discussion

6609.	From a battery of potential difference 20 V, current 3 A flows through a wire for 90 min. Find the electrical energy supplied by the battery.
Answer» From a battery of potential difference 20 V, current 3 A flows through a wire for 90 min. Find the electrical energy supplied by the battery.

Discussion

6610.	Describe a bell jar experiment to prove sound requires a medium to travel. [5 MARKS]
Answer» Describe a bell jar experiment to prove sound requires a medium to travel. [5 MARKS]

Discussion

6611.	A plane mirror is approaching you at 10 cms−1. Your image shall approach you with a speed of:
Answer» A plane mirror is approaching you at $10 c m s^{- 1}$ . Your image shall approach you with a speed of:

Discussion

6612.	Calculate the apparent weight of a stone whose weight in the air is 250 g and the upthrust is 0.8 N.(take g = 9.8 ms−2)
Answer» Calculate the apparent weight of a stone whose weight in the air is 250 g and the upthrust is 0.8 N. $(t a k e g = 9.8 m s^{-} 2)$

Discussion

6613.	The line joining the centre of curvature and the ___ of the mirror is called the principal Axis
Answer» The line joining the centre of curvature and the ___ of the mirror is called the principal Axis

Discussion

6614.	A spherical solid ball of volume V is made of a material of density ρ1. It is falling through a liquid of density ρ2(ρ2<ρ1). Assume that the liquid applies a viscous force on the ball that is proportional to the square of its speed v, i.e., Fviscous=−kv2(k>0). The terminal speed of the ball is.
Answer» A spherical solid ball of volume V is made of a material of density $ρ_{1}$ . It is falling through a liquid of density $ρ_{2} (ρ_{2} < ρ_{1})$ . Assume that the liquid applies a viscous force on the ball that is proportional to the square of its speed v, i.e., $F_{v i s c o u s} = - k v^{2} (k > 0)$ . The terminal speed of the ball is.

Discussion

6615.	What is rotational fluid?
Answer» What is rotational fluid?

Discussion

6616.	Why do we always see only one side of the moon?
Answer» Why do we always see only one side of the moon?

Discussion

6617.	If we make a windmill on the moon will its blade ever move.Why?
Answer» If we make a windmill on the moon will its blade ever move.Why?

Discussion

6618.	Which of the below is a set of solid objects?
Answer» Which of the below is a set of solid objects?

Discussion

6619.	Which of the following does not affect the magnetic properties of a material?
Answer» Which of the following does not affect the magnetic properties of a material?

Discussion

6620.	Which statement about motion in the universe is not true?
Answer» Which statement about motion in the universe is not true?

Discussion

6621.	How do earthquakes occur(explian in short)
Answer» How do earthquakes occur(explian in short)

Discussion

6622.	When a bimetallic strip is heated, it-
Answer» When a bimetallic strip is heated, it-

6622.

When a bimetallic strip is heated, it-

Answer»

When a bimetallic strip is heated, it-

Discussion

6623.	What happens when the two plate of earth's crust moving in opposite directions slide past one another ?
Answer» What happens when the two plate of earth's crust moving in opposite directions slide past one another ?

Discussion

6624.	explain how do we differentiate between sound from guitar and sound from flute if all the parameters are same that is frequency wavelength and amplitude
Answer» explain how do we differentiate between sound from guitar and sound from flute if all the parameters are same that is frequency wavelength and amplitude

Discussion

6625.	Why army camps are provided with caterpillar tracks??
Answer» Why army camps are provided with caterpillar tracks??

Discussion

6626.	Identify the tense of the sentence. We have left the garage door open for you.
Answer» Identify the tense of the sentence. We have left the garage door open for you.

6626.

Identify the tense of the sentence. We have left the garage door open for you.

Answer»

Identify the tense of the sentence.

We have left the garage door open for you.

Discussion

6627.	Why can't we see in the dark?
Answer» Why can't we see in the dark?

Discussion

6628.	When a comb rubbed on hair is brought near bits of paper, it attracts them, because:
Answer» When a comb rubbed on hair is brought near bits of paper, it attracts them, because:

Discussion

6629.	The magnitude of force in a spring depends on
Answer» The magnitude of force in a spring depends on

Discussion

6630.	Mass × change in velocity = ___ × time interval. Fill in the blank:
Answer» Mass $\times$ change in velocity = ___ $\times$ time interval. Fill in the blank:

Discussion

6631.	An artificial satellite is moving in a circular orbit of radius 42250 km. Calculate its speed if it takes 24 hours to revolve around the earth.
Answer» An artificial satellite is moving in a circular orbit of radius 42250 km. Calculate its speed if it takes 24 hours to revolve around the earth.

Discussion

6632.	What chemical reaction takes place in the potatoes when the electrical current is being passed through it?
Answer» What chemical reaction takes place in the potatoes when the electrical current is being passed through it?

Discussion

6633.	The velocity of a car is 18ms. Express this velocity in kmhr.
Answer» The velocity of a car is $18 \frac{m}{s}$ . Express this velocity in $\frac{k m}{h r}$ .

Discussion

6634.	Does the type of liquid solution depends on the type of anode and cathode in electroplating?
Answer» Does the type of liquid solution depends on the type of anode and cathode in electroplating?

Discussion

6635.	Suppose you have a simple pendulum. It sets the particles of air in vibration .Then why can't you hear any sound from it?
Answer» Suppose you have a simple pendulum. It sets the particles of air in vibration .Then why can't you hear any sound from it?

Discussion

6636.	A resistance coil is made by combining two 2.5 ohm resistances in series. A 1.0 V steady voltage is applied across the two ends of the coil for 5 minutes. The heat generated is:
Answer» A resistance coil is made by combining two 2.5 ohm resistances in series. A 1.0 V steady voltage is applied across the two ends of the coil for 5 minutes. The heat generated is:

Discussion

6637.	Name two planets which have been discovered with the help of telescope.
Answer» Name two planets which have been discovered with the help of telescope.

Discussion

6638.	What is distilled water
Answer» What is distilled water

Discussion

6639.	(a) What is the difference between static and sliding friction? For a given pair of objects, which of the two is greater? (b) How can a very heavy machine be moved conveniently from one place to another in a factory? (No crane is available for this purpose).
Answer» (a) What is the difference between static and sliding friction? For a given pair of objects, which of the two is greater? (b) How can a very heavy machine be moved conveniently from one place to another in a factory? (No crane is available for this purpose).

Discussion

6640.	What does this image depict?
Answer» What does this image depict?

6640.

What does this image depict?

Answer»

What does this image depict?

Discussion

6641.	1.do mechanical waves lose energy as they travel through a medium? Why/why not? 2. What type of waves is an electro magnetic wave?
Answer» 1.do mechanical waves lose energy as they travel through a medium? Why/why not? 2. What type of waves is an electro magnetic wave?

6641.

1.do mechanical waves lose energy as they travel through a medium? Why/why not? 2. What type of waves is an electro magnetic wave?

Answer»

1.do mechanical waves lose energy as they travel through a medium? Why/why not?

2. What type of waves is an electro magnetic wave?

Discussion

6642.	Can the image formed by a plane mirror be projected onto a screen Can you please check my answer Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen
Answer» Can the image formed by a plane mirror be projected onto a screen Can you please check my answer Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen

6642.

Can the image formed by a plane mirror be projected onto a screen Can you please check my answer Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen

Answer»

Can the image formed by a plane mirror be projected onto a screen

Can you please check my answer

Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen

Discussion

6643.	If we want to pure a impure copper plate then it should be attached in place of electrode connected to negative terminal or positive terminal when the electrodes are immersed in CuSo4 solution?
Answer» If we want to pure a impure copper plate then it should be attached in place of electrode connected to negative terminal or positive terminal when the electrodes are immersed in CuSo4 solution?

Discussion

6644.	Define density
Answer» Define density

Discussion

6645.	is it important that gives light is also give heat?
Answer» is it important that gives light is also give heat?

Discussion

6646.	Ability of the eye to see objects at all distance is called –
Answer» Ability of the eye to see objects at all distance is called –

Discussion

6647.	The force exerted by a magnet on another magnet is a non-contact force. The force exerted by a magnet on a magnetic material will
Answer» The force exerted by a magnet on another magnet is a non-contact force. The force exerted by a magnet on a magnetic material will

Discussion

6648.	___ regions are more prone to landslides.
Answer» ___ regions are more prone to landslides.

Discussion

6649.	If no resultant force acts on a body then the body will be in
Answer» If no resultant force acts on a body then the body will be in

Discussion

6650.	Which of the following demonstrates the law of reflection correctly?
Answer» Which of the following demonstrates the law of reflection correctly?

Discussion

Explore topic-wise InterviewSolutions in .

A sound wave is different than a light wave in that a sound wave is

Noise pollution causes:

Which of the following is not a state variable?

Question 7 The first of a month is the new moon day. On fifteenth of the same month, which of the following figures would represent the phase of the moon? (a) (b) (c) (d)

Which of the following is incorrect?

The loudness of a sound is 8 db when the amplitude of vibrations is 2 units. If the amplitude is increased to 8 units, find the loudness of the sound in db. [3 MARKS]

What is the difference between electronics and electrical?

From a battery of potential difference 20 V, current 3 A flows through a wire for 90 min. Find the electrical energy supplied by the battery.

Describe a bell jar experiment to prove sound requires a medium to travel. [5 MARKS]

A plane mirror is approaching you at 10 cms−1. Your image shall approach you with a speed of:

Calculate the apparent weight of a stone whose weight in the air is 250 g and the upthrust is 0.8 N.(take g = 9.8 ms−2)

The line joining the centre of curvature and the ___ of the mirror is called the principal Axis

What is rotational fluid?

Why do we always see only one side of the moon?

If we make a windmill on the moon will its blade ever move.Why?

Which of the below is a set of solid objects?

Which of the following does not affect the magnetic properties of a material?

Which statement about motion in the universe is not true?

How do earthquakes occur(explian in short)

When a bimetallic strip is heated, it-

What happens when the two plate of earth's crust moving in opposite directions slide past one another ?

explain how do we differentiate between sound from guitar and sound from flute if all the parameters are same that is frequency wavelength and amplitude

Why army camps are provided with caterpillar tracks??

Identify the tense of the sentence. We have left the garage door open for you.

Why can't we see in the dark?

When a comb rubbed on hair is brought near bits of paper, it attracts them, because:

The magnitude of force in a spring depends on

Mass × change in velocity = ___ × time interval. Fill in the blank:

An artificial satellite is moving in a circular orbit of radius 42250 km. Calculate its speed if it takes 24 hours to revolve around the earth.

What chemical reaction takes place in the potatoes when the electrical current is being passed through it?

The velocity of a car is 18ms. Express this velocity in kmhr.

Does the type of liquid solution depends on the type of anode and cathode in electroplating?

Suppose you have a simple pendulum. It sets the particles of air in vibration .Then why can't you hear any sound from it?

A resistance coil is made by combining two 2.5 ohm resistances in series. A 1.0 V steady voltage is applied across the two ends of the coil for 5 minutes. The heat generated is:

Name two planets which have been discovered with the help of telescope.

What is distilled water

(a) What is the difference between static and sliding friction? For a given pair of objects, which of the two is greater? (b) How can a very heavy machine be moved conveniently from one place to another in a factory? (No crane is available for this purpose).

What does this image depict?

1.do mechanical waves lose energy as they travel through a medium? Why/why not? 2. What type of waves is an electro magnetic wave?

Can the image formed by a plane mirror be projected onto a screen Can you please check my answer Ans: no the image formed by the plane mirror can't be projected on the screen as a plane mirror forms a virtual image and a virtual image can be obtained on the screen

If we want to pure a impure copper plate then it should be attached in place of electrode connected to negative terminal or positive terminal when the electrodes are immersed in CuSo4 solution?

Define density

is it important that gives light is also give heat?

Ability of the eye to see objects at all distance is called –

The force exerted by a magnet on another magnet is a non-contact force. The force exerted by a magnet on a magnetic material will

___ regions are more prone to landslides.

If no resultant force acts on a body then the body will be in

Which of the following demonstrates the law of reflection correctly?