Physics Part 2 Online Quiz


Advertisements

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

Q 2 - Which among the following lens is used in movie production?

A - Convex

B - Concave

C - Bifocal

D - a & b both

Answer : A

Explanation

N/A

Q 3 - Which among the following waves is used in radar?

A - Gamma waves

B - Radio waves

C - Ultrasonic waves

D - Infrasonic waves

Answer : B

Explanation

Radar is used to detect aircraft, spacecraft, guided missiles, ships, motor vehicles, weather formations, submarines, and terrain.

Q 4 - One yard is equal to …

A - 3 feet

B - 6 feet

C - 9 feet

D - 4.6 feet

Answer : A

Explanation

N/A

Q 5 - Cooking at high altitude (in comparison to sea level), is …

A - Faster

B - Slower

C - Same

D - Depends on the type of food and the pot used in cooking

Answer : B

Explanation

Because of low atmospheric pressure, the boiling point decreases.

Q 7 - Beaufort scale is used to measure ……

A - Altitude

B - Cooling of air

C - Speed and pressure of wind

D - Wind force

Answer : D

Explanation

Beaufort scale is an instrument used in measuring the wind force.

Q 8 - When a cricket player catches a fasting coming ball, he pulls his hands back with the fast coming ball to reduce the velocity to zero. The act best defines …

A - Newton’s Third Law

B - Newton’s First Law

C - Newton’s Second Law

D - Charles's law

Answer : C

Explanation

N/A

Q 9 - Which among the following laws explains the ‘spectrum of blackbody radiation?’

A - Planck's law

B - Wien's displacement law

C - Stefan–Boltzmann law

D - Charles's law

Answer : A

Explanation

Planck explained the spectrum of blackbody radiation, which depends only on the respective object's temperature.

Answer : B

Explanation

Atomic watches give the most accurate time.

Q 11 - Who has given the principle i.e. “any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object.”

A - Archimedes

B - James Watt

C - Isaac Newton

D - Pascal

Answer : A

Explanation

It was the Archimedes who first observed and given the principle of buoyancy; also known as Archimedes’ Principle.

Q 12 - Who had invented ‘Air Conditioning?’

A - Carrier

B - Rotheim

C - Moseley

D - Ohain

Answer : A

Explanation

Willis Carrier had first invented the air conditioning system.

Q 13 - Who had propounded the ‘Dynamic Theory of Gases?’

A - Nobel

B - Maxwell

C - Clausius

D - Kirchhoff

Answer : B

Explanation

The dynamic theory of gases was first stated by Maxwell.

Q 14 - What is the escape velocity for the earth?

A - 11.2 km/s

B - 16.4 km/s

C - 8.7 km/s

D - 4.7 km/s

Answer : A

Explanation

N/A

Q 15 - Who had first observed the ‘earth’s magnetic field?’

A - Newton

B - Gilbert

C - Pascal

D - Hook

Answer : B

Explanation

It was William Gilbert who had given the principle of earth’s magnetic field.

Q 16 - Consider the following statements:

1. The concave mirror is used in opthalmoscope to examine eye, ear, and nose.

2. In solar cookers, convex 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 a solar cooker, concave mirror is used.

Q 17 - Consider the following statements:

1. With the emission of Alfa particle, mass number is decreased by 4 and atomic number is decreased by 2.

2. With the emission of Beta particle, mass number does not change, but atomic number is increased by 1.

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

The change in atomic number and mass number in the radioactivity is explained by Group-displacement law or Soddy-Fajan law.

Q 18 - Consider the following statements:

1. The force of attraction between the molecules of same substance is called as cohesive force.

2. Cohesive force is maximum in liquid.

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

The cohesive force is maximum in solid and minimum (or negligible) in gas.

Q 19 - Consider the following statements:

1. The amount of heat required to raise the temperature of unit mass of substance through 10, is known as specific heat capacity.

2. The SI unit of specific heat capacity is Joul/kilogram Kelvin (J/kg.k).

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 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_part2_online_quiz.htm
Advertisements