Physics Part 1 Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Physics. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Questions and Answers

Q 1 - The amount of time that the sun’s rays take to reach on the earth is about …

A - 12 minutes

B - 8 minutes

C - 6 minutes

D - Only 45 seconds

Answer : B

Explanation

N/A

Answer : B

Explanation

N/A

Answer : A

Explanation

Microwave is a form of electromagnetic radiation.

Q 4 - Which among the following can be considered as an ideal black body?

A - Coal

B - A black cat

C - A pin hole in a wall

D - Naturally occurring black materials

Answer : C

Explanation

N/A

Q 5 - Kepler’s Second Law of Planetary Motion is known as …

A - Law of elliptical orbits

B - Laws of areas

C - Law of volume

D - Harmonic laws

Answer : B

Explanation

N/A

Answer : A

Explanation

Inertia is the tendency of an object to maintain its position i.e. if it is in rest, then remains at rest or if it is in motion, then remains in motion.

Answer : B

Explanation

N/A

Q 8 - In a running train, if a passenger tosses a coin upward, which falls behind him. It means, the motion of train is …

A - Increased

B - Decreased

C - Uniform

D - Along the circular tracks

Answer : A

Explanation

N/A

Q 9 - The current produced by friction is known as …

A - Direct current

B - Alternating current

C - Magnetic current

D - Static current

Answer : D

Explanation

Because of friction, electrons get transferred and create static current.

Q 10 - The measuring unit of an angle is:

A - Lux

B - Farad

C - Steradian

D - Radian

Answer : D

Explanation

Radian is the measuring unit of an angle.

Answer : C

Explanation

N/A

Q 12 - Through a beam of red light a diffraction pattern is obtained; what will happen if red light is replaced by blue light?

A - No change

B - Bands will disappear

C - Diffraction patter will become broader and further apart

D - Diffraction pattern will become narrower and crowed together

Answer : D

Explanation

The blue light will change the pattern and hence the diffraction becomes narrower.

Answer : C

Explanation

Hydrometer is an instrument that measures the density of liquid.

Q 14 - Who had first invented ‘Steam Engine?’

A - Thomas Savery

B - Newcomen

C - Crompton

D - Watt

Answer : A

Explanation

Steam engine first invented by Thomas Savery; however, James Watt invented steam engine (condenser).

Q 15 - One nautical mile is equal to …

A - 1.85 km

B - 1.45 km

C - 2.5 km

D - 2.1 km

Answer : A

Explanation

N/A

Q 16 - In reference to radioactivity, consider the following statements:

1. Gamma rays are emitted after the emission Alfa and Beta rays.

2. Gamma rays are produced by neutron stars, pulsars, and supernova explosions.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : C

Explanation

Gamma rays have the smallest wavelengths.

Q 17 - Consider the following statements:

1. In the vehicles (for rear view), convex mirror is used.

2. In sodium reflector lamp, concave mirror is used.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : A

Explanation

In sodium reflector lamp, convex mirror is used.

Answer : A

Explanation

It was Nicolas-Jacques Conté, who first invented the technique of pencil manufacturing in 1795.

Q 19 - In a normal circumstance, a normal human being can hear sound as low as …

A - 8 Hz

B - 12 Hz

C - 15 Hz

D - 18 Hz

Answer : B

Explanation

N/A

Q 20 - Who had invented the technique of photography (on metal)?

A - Sadi Carnot

B - Neepse

C - Talbot

D - Clausius

Answer : B

Explanation

It was J. Neepse, who first invented the technique of photography (on metal).

physics_part1_online_quiz.htm
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