R4RIN – MCQs, Mock Tests | Physics G.K Question and Answer

Where do we use transformers?

1. Power stations
2. Radio sets
3. Television
4. All of the above

✅ Correct Answer: 4

How much electric potential does the live wire carry?

1. 100 volts
2. 150 volts
3. 185 volts
4. 20 volts

✅ Correct Answer: 4

What is the electric potential of neutral wire?

1. Zero volt
2. 100 volt
3. 10 volt
4. 10 volt

✅ Correct Answer: 1

What is the colour of insulation covering on live wire?

1. Green
2. Red
3. Black
4. Yellow

✅ Correct Answer: 2

What is the colour of insulation covering on neutral wire?

1. Blue
2. Red
3. Green
4. Black

✅ Correct Answer: 4

What is the rating of main fuse which is put in the live wire?

1. 10 amperes
2. 140 amperes
3. 50 amperes
4. 65 amperes

✅ Correct Answer: 3

In which unit is the electrical energy consumed by us recorded?

1. Volt
2. Kilowatt-minute
3. Kilowatt-hour
4. Kilowatt-second

✅ Correct Answer: 3

Which of the following are the two separate circuits in a house?

1. Lighting and power circuit
2. Open and closed circuit
3. Series and parallel circuit
4. None of the above

✅ Correct Answer: 1

What is the fuse of lighting circuit?

1. 20 A fuse
2. 5 A fuse
3. 18 A fuse
4. 5 A fuse

✅ Correct Answer: 2

What is the fuse of power circuit?

1. 5 A fuse
2. 18 A fuse
3. 15 A fuse
4. 10 A fuse

✅ Correct Answer: 3

Which of the following devices is run by lighting circuit in the house?

1. Electric bulb
2. Tube-lights
3. Fans
4. All of the above

✅ Correct Answer: 4

Which of the following devices is run by power circuit in the house?

1. Tube-lights
2. Electric iron
3. Television
4. Radio

✅ Correct Answer: 2

Which of the following device converts chemical energy in to electrical energy?

1. Battery
2. Loud Speaker
3. Solar Cell
4. Electric Motor

✅ Correct Answer: 1

The energy possessed by a body due to its position is called:

1. Kinetic Energy
2. Potential Energy
3. Mechanical Energy
4. Electrical Energy

✅ Correct Answer: 2

Joule is a unit of:

1. Work
2. Power
3. Momentum
4. None of the above

✅ Correct Answer: 1

The commercial unit of Energy is:

1. Watt
2. Watt-hour
3. Kilowatt-hour
4. Kilowatt

✅ Correct Answer: 3

When an object falls freely towards the ground, then its total energy:

1. Increases
2. Decreases
3. Remains constant
4. First increases then decreases

✅ Correct Answer: 3

In 1 minute how much energy does a 100 W electric bulb transfers?

1. 100 J
2. 600 J
3. 3600 J
4. 6000 J

✅ Correct Answer: 4

What happens to the body on which work is done:

1. It loses energy
2. It gains energy
3. No change in the energy
4. First it loses then it gain

✅ Correct Answer: 2

A radio set of 60 watts runs for 50 hours. How many units of electrical energy are consumed in kWh?

1. 2 kWh
2. 3 kWh
3. 4 kWh
4. 2.5 kWh

✅ Correct Answer: 2

What is the smallest unit of power?

1. Watt
2. Kilowatt
3. Horse power
4. Milliwatt

✅ Correct Answer: 1

On an object the work done does not depend upon:

1. Displacement
2. Angle between force and displacement
3. Force applied
4. Initial velocity of an object

✅ Correct Answer: 4

On which theory nature of light depends upon:

1. Wave theory
2. Particle theory
3. Both A and B
4. Only A

✅ Correct Answer: 3

Why light is said to have a dual nature?

1. It exhibits the properties of wave and particles.
2. It exhibits the properties of reflection and diffraction.
3. It has both interference and polarisation effect.
4. None of the above

✅ Correct Answer: 1

Which object does not reflect more light?

1. Polished Surface
2. Shining Surface
3. Unpolished
4. Both A and B

✅ Correct Answer: 3

Name a metal which is the best reflector of light?

1. Gold
2. Silver
3. Iron
4. Magnesium

✅ Correct Answer: 2

An incident ray is:

1. The point at which incident ray falls on the mirror.
2. The ray of light which is sent back by the mirror.
3. The ray of light which falls on the mirror surface.
4. The ray which makes right angle to the mirror surface.

✅ Correct Answer: 3

Anything which gives out light rays is called :

1. Real Image
2. Virtual Image
3. Object
4. Image

✅ Correct Answer: 3

When a parallel beam of incident light is reflected as a parallel beam in one direction, this reflection is known as:

1. Diffuse reflection
2. Interference
3. Diffraction
4. Regular reflection

✅ Correct Answer: 4

We see the image of our face when we look into the mirror. It is due to:

1. Interference
2. Diffraction
3. Polarisation
4. Reflection

✅ Correct Answer: 4

The image formed on a cinema screen is an example of:

1. Real Image
2. Virtual Image
3. Point Image
4. Plane Image

✅ Correct Answer: 1

When Lunar Eclipse occur?

1. When Sun is between Earth and Moon
2. When Earth is between Sun and Moon
3. When Moon is between Earth and Sun
4. When Earth is between Sun and other celestial bodies

✅ Correct Answer: 2

When did Lunar Eclipse happen?

1. Half Moon
2. Full Moon
3. Equinox
4. None of the above

✅ Correct Answer: 3

What is Solar Eclipse?

1. When moon comes in between Earth and Sun
2. When Earth comes in between Moon and Sun
3. When Sun comes in between Earth and Moon
4. When Sun rays does not reach Earth.

✅ Correct Answer: 1

When the same pattern of solar eclipse repeats every 18 years 11 days 8 hours are known as:

1. Nodes cycle
2. Saros cycle
3. Saras cycle
4. Payan cycle

✅ Correct Answer: 2

What do you mean by Blood Moon?

1. It is total solar eclipse.
2. It is partial lunar eclipse with red glow
3. It is total lunar eclipse with deep red glow
4. None of the above

✅ Correct Answer: 3

During lunar eclipse, the visible red colour is because of:

1. Dust in space
2. Dust in moon’s atmosphere
3. Dust in earth’s atmosphere
4. None of the above

✅ Correct Answer: 3

During a calendar year, the maximum numbers of lunar eclipse that can occur are:

1. 2
2. 3
3. 4
4. None of the above

✅ Correct Answer: 2

What do you understand by an eclipse?

1. Partial or total blocking of light of one celestial object by another.
2. Partial or total blocking of light by Moon.
3. Partial or total blocking of light by Earth.
4. Partial or total blocking of light by Sun.

✅ Correct Answer: 1

Physics MCQ Quiz Hub

G.K Question and Answer - Physics Set VII