Physics Part 2 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 - Consider the following statements:

1. If the rays pass through a rarer medium to denser medium, the velocity decreases.

2. If the rays pass through from rarer medium to denser medium, the velocity remains same.

Choose the correct answer from the codes given below:

Answer : C

Explanation

N/A

Q 2 - In which of the following type of eye problems, the cylindrical lens is used?

Answer : A

Explanation

Normally caused by an irregular cornea.

Q 3 - The X-rays are produced when …

A - The electrons collide with the atoms and nuclei of the targeted metal

B - The protons collide with the atoms and nuclei of the targeted metal

C - The neutrons collide with the atoms and nuclei of the targeted metal

D - The positrons collide with the atoms and nuclei of the targeted metal

Answer : A

Explanation

Discovered in 1895 by Wilhelm Conrad Roentgen, X-ray is a very energetic form of electromagnetic radiation; it is used to take image of a human body.

Q 4 - Which among the following correctly defines the First Law of Thermodynamics?

A - The law of conservation of energy

B - Newton’s law of gravitation

C - Archimedes principle

D - Charle’s law

Answer : A

Explanation

First law of thermodynamics explains the relations between heat and other forms of energy.

Q 5 - Consider the following statements:

1. The temperature of a gas is characteristically a measure of the average translational kinetic energy of the molecules.

2. In a hot gas, the molecules move slower in comparison to a cold gas.

Choose the correct answer from the codes given below:

Answer : A

Explanation

In a hot gas, the molecules move faster in comparison to a cold gas.

Q 6 - The term ‘Dynamic lift’ is explained by …

A - Bernoulli’s theorem

B - Newton’s gravitational principle

C - Kirchhoff’s law

D - First law of thermodynamics

Answer : A

Explanation

For any sort of airfoil producing lift, there must be a pressure imbalance, it means, the lower average air pressure on the top than on the bottom. Therefore, the Bernoulli's principle states that this pressure difference must be accompanied by the speed difference.

Q 7 - Which among the following influences the pitch of sounds?