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.

Q 1 - The device by which an artificial climate can be produced, is known as …

Answer : B

Explanation

Cytotron is also a medical device; it uses Rotational Field Quantum Nuclear Magnetic Resonance to treat disease like Osteoarthritis and Cancer.

Q 2 - As we see, all stars have not the same color rather different; because of …

A - Different age of stars

B - Different size of stars

C - Variation in distances

D - Difference in temperature

Answer : D

Explanation

N/A

Q 3 - Which among the following waves is used by Wireless communication to carry signals?

A - Electromagnetic waves

B - Radio waves

C - Ultrasonic waves

D - Infrasonic waves

Answer : A

Explanation

N/A

Q 4 - If the temperature of air increases then the speed of sound will …

A - Increase

B - Decrease

C - No change

D - First increase and then decrease

Answer : A

Explanation

N/A

Q 5 - Barograph measures …

A - Altitude

B - Cooling of air

C - Speed and pressure of wind

D - Wind force

Answer : A

Explanation

Barograph is an instrument used in airplane to measure the altitude.

Q 6 - A person enclosed inside an artificial satellite feels weightless because …

A - Gravitational force is zero

B - Gravitational force is very high

C - Centripetal force is greater than centrifugal force

D - Centrifugal force is greater than centripetal force

Answer : A

Explanation

N/A

Q 7 - The devices, which have infinite electrical resistance are known as …

Answer : B

Explanation

Insulator is a substance or device which does not readily carries electricity.

Q 8 - Who had invented ‘Carburettor?’

Answer : D

Explanation

The first carburetor was invented by Samuel Morey in 1826.

Q 9 - Which one of the following mirrors is used in a solar cooker?

Answer : A

Explanation

To focus the infra-red coming from the sun, concave mirror is used in a solar cooker.

Q 10 - In which of the following mediums, sound’s travelling speed is highest?

Answer : C

Explanation

Speed of sound is highest in solid materials e.g. speed of sound in iron is about 5,120 m/s.

Q 11 - Find the correct statement:

A - Temperature differing by 30⁰ on the Fahrenheit scale must differ by 45⁰ on the Celsius scale

B - 0⁰ Fahrenheit is equal to -17.8⁰ Celsius

C - Temperature differing by 15⁰ on the Celsius scale must differ by 22⁰ on the Fahrenheit scale

D - Water at 80⁰ C is warmer than water at 200⁰ F

Answer : B

Explanation

0⁰ F = -17.77778⁰0 C

Q 12 - What is the frequency range of VHF?

A - 300 MHz to 3,000 MHz

B - 3,000 MHz to 30,000 MHz

C - 30 MHz to 3,000 MHz

D - 30 MHz to 300 MHz

Answer : D

Explanation

VHF stands for Very High Frequency.

Q 13 - Consider the following statements:

1. Kirchhoff’s law states that the good absorbers are good emitter.

2. Through radiation, heat takes place with the speed of light without affecting the intervening medium.

Choose the correct answer from the codes given below:

Answer : C

Explanation

N/A

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

Answer : A

Explanation

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

Q 15 - Which among the following is used to compare the intensity of colors?

Answer : D

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:

Answer : C

Explanation

Gamma rays have the smallest wavelengths.

Q 17 - Cardiograph measures …

A - Heart beat

B - Blood pressure

C - Potential energy of a human body

D - Pulse rate

Answer : A

Explanation

Cardiograph is an instrument that measures heartbeat.

Q 18 - Who had invented ‘Neutron Bomb?’

Answer : A

Explanation

It was Samuel T. Cohen, who first invented the neutron bomb.

Q 19 - Consider the following statements:

1. Viscosity is the property of liquid by virtue of which it opposes the relative motion between its different layers.

2. Viscosity is the property of liquid only.

Choose the correct answer from the codes given below:

Answer : A

Explanation

Viscosity is the property of both liquid and gas.

Q 20 - The measuring unit of frequency is …

Answer : B

Explanation

The hertz is the measuring unit of frequency.

physics_part1_online_quiz.htm