Physics Part 1 Online Quiz


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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 - Rainbow forms because of …

A - Refraction

B - Reflection

C - Diffraction

D - a & b

Answer : D

Explanation

N/A

Q 3 - Which among the following is used during pregnancy to check on the development of the fetus?

A - Infra-red

B - Ultrasonic

C - Sound waves

D - Micro waves

Answer : C

Explanation

The technique is named as obstetrical sonography.

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

Answer : C

Explanation

N/A

Answer : A

Explanation

N/A

Q 7 - Which among the following colors (lights) has the shortest wavelength?

A - Violet

B - Red

C - Green

D - Blue

Answer : A

Explanation

Violet has about 380–450 nm wavelength, which is shortest among all seven colors.

Q 8 - Which of the following waves is used in SONAR?

A - Audible sound wave

B - Radio wave

C - Infrasonic wave

D - Ultrasonic wave

Answer : D

Explanation

N/A

Q 9 - Who had invented ‘Revolver?’

A - Carbutt

B - Niepce

C - Colt

D - Plank

Answer : C

Explanation

It was Samuel Colt who had first invented the revolver in 1830s.

Q 10 - If boiling point of water is measured in Fahrenheit, then it would be …

A - 3730F

B - 00F

C - 1000F

D - 2120F

Answer : D

Explanation

The formula of to convert OC into Fahrenheit is 0C × 9/5 + 32 = 0F.

Q 11 - The measurement unit of time is:

A - Hour

B - Minute

C - Second

D - Kelvin

Answer : C

Explanation

Second is the measuring unit of time.

Q 12 - Consider the following statements:

1. Warm soup is tasty because of high temperature; the surface tension remains high.

2. The warm soup spreads all over the tongue and gives good test.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

Answer : B

Explanation

Warm soup is tasty because of high temperature; the surface tension remains low.

Q 14 - Who among the following has discovered visible radiation?

A - Henry Becqueral

B - W Rontgen

C - Ritter

D - Newton

Answer : D

Explanation

N/A

Q 15 - Consider the following statements:

1. The radioactivity element ‘radium’ was discovered by Robert Pierre and his wife Madam Curie.

2. Rutherford first discovered the rays emitted by radioactivity.

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

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 - The measuring unit of thermodynamic temperature is:

A - Ampere

B - Kelvin

C - Mole

D - Candela

Answer : B

Explanation

The measuring unit of thermodynamic temperature is Kelvin.

Q 18 - Consider the following statements:

1. The physical quantities which have only magnitude and no direction are known as scalar quantities.

2. The physical quantities which have both the magnitude and the direction are known as vector quantities.

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

Along with the magnitude and direction, it must follow the triangle law to be a vector.

Q 19 - The branch of physics that studies about the properties, features, and mechanisms of atomic nucleus is known as:

A - Astronomy

B - Modern Physics

C - Mechanics

D - Atomic Physics

Answer : B

Explanation

Modern physics is the study of atomic nucleus; therefore, it is also known as Nuclear Physics.

Q 20 - Which among the following is used to determine the speed of an aircraft?

A - Periscope

B - Manometer

C - Machmeter

D - Kymograph

Answer : C

Explanation

N/A


physics_part1_online_quiz.htm

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