# 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. In CFL, mercury vapor and phosphor are used to produce light.

2. In LED, semi-conductor material is used to produce light.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

### Explanation

In comparison to LED, CFL is less energy efficient.

Q 2 - When air bubble put in water, it acts like …

A - Concave lens

B - Concave mirror

C - Convex lens

D - Convex mirror

N/A

### Explanation

N/A

Q 4 - The walls of auditorium made especially for the (music) concert ………… sounds.

A - Absorb

B - Reflect

C - Refract

D - Produce resonance

### Explanation

N/A

Q 5 - Who had invented ‘Transistor?’

A - Bardeen

B - Spangler

C - Farnsworth

D - Marconi

### Explanation

Transistor had been invented by Bardeen, Shockley, and Brattain.

### 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.

### Explanation

N/A

Q 8 - Consider the following statements:

1. Ohm’s law explains that the electric current is proportional to the voltage and inversely proportional to the resistance.

2. Faraday’s law explains the phenomena of electrolysis.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

### Explanation

Faraday’s law explains the phenomena of electromagnetic induction.

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

A - Direct current

B - Alternating current

C - Magnetic current

D - Static current

### Explanation

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

Q 10 - If a balloon filled with hydrogen and oxygen gases; when someone makes a hole in the balloon, which gas will emit first?

A - Oxygen

B - Hydrogen

C - Both together

D - As such no order

### Explanation

N/A

Q 11 - Who had invented ‘Barometer?’

A - Torricelli

B - Browning

C - Cugnot

D - Cantrell

### Explanation

Evangelista Torricelli had first invented the barometer.

### Explanation

VHF stands for Very High Frequency.

Q 13 - Who among the following first used the terms ‘positive charge’ and ‘negative charge?’

A - Benjamin Frankline

B - Galileo Galilei

C - Enrico Fermi

D - Max Planck

### Explanation

N/A

Q 14 - The branch of physics that analyzes the relationship between electrostatic and magnetic fields is known as:

A - Acoustics

B - Atomic Physics

C - Electrodynamics

D - Mechanics

### Explanation

Electrodynamics studies and analyzes the relationship between electrostatic and magnetic fields.

Q 15 - Which among the following is used to see the objects above the sea level?

A - Periscope

B - Manometer

C - Machmeter

D - Kymograph

N/A

### Explanation

N/A

Q 17 - Consider the following statements:

1. If gravitational force is negligible, in equilibrium condition, pressure is same at all points in a liquid.

2. If an external pressure is applied to the fluid, it gets transmitted undiminished in every direction.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

### Explanation

This law was established by French mathematician Blaise Pascal.

Q 18 - Consider the following statements:

1. Good conductors have loosely bond electrons.

2. Bad conductors or insulators have tightly bond electrons.

Choose the correct answer from the codes given below:

A - Only 1

B - Only 2

C - Both

D - Neither 1 nor 2

### Explanation

Electricity flows through free electron.

Q 19 - Who had first discovered ‘atom?’

A - Young

B - Dalton

C - Pascal

D - Weber

### Explanation

N/A

Q 20 - Which among the following is a secondary color?

A - Yellow

B - Blue

C - Red

D - White