Physics GK · all questions

Modern Physics
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

244

Questions

12/13

Page

Pick an option on a question to see the right answer and solution.

Q221

The energy of a photon, whose momentum is 10 Me V/c, where c is the speed of light, is given by

Select an option to see the answer and solution.

Q222

The material used in the fabrication of a transistor is

Select an option to see the answer and solution.

Q223

Which one of the following element is used in solar cells?

Select an option to see the answer and solution.

Q224

If the size of the nucleus of an atom is compared with a cricket ball, then the radius of the atom is approximately equal to how many kilometres?

Select an option to see the answer and solution.

Q225

Atomic power plant works on the principle of

Select an option to see the answer and solution.

Q226

Nuclear reactors used to produce electricity are based on

Select an option to see the answer and solution.

Q227

The difference between nuclear reactor and atom bomb is that

Select an option to see the answer and solution.

Q228

Photovoltaic cell is related to

Select an option to see the answer and solution.

Q229

Who formulated India's three-stage nuclear power program?

Select an option to see the answer and solution.

Q230

Assertion (A) Photoelectric effect demonstrates the particle nature of light.
Reason (R) The number of photoelectrons is proportional to the frequency of light.

Select an option to see the answer and solution.

Q231

Which of the following is the oldest Nuclear research reactor of India?

Select an option to see the answer and solution.

Q232

Radioactivity is measured by

Select an option to see the answer and solution.

Q233

In which year was Einstein's "Theory of Special Relativity" first proposed?

Select an option to see the answer and solution.

Q234

Cyclotrons are used to accelerate

Select an option to see the answer and solution.

Q235

Which of the following elements is not suitable for the fabrication of a light emitting diode structure?

Select an option to see the answer and solution.

Q236

When a vehicle passes, TV reception gets distorted. This is because

Select an option to see the answer and solution.

Q237

Name the process of production of energy in the sun

Select an option to see the answer and solution.

Q238

In a nuclear reactor what does the controller rod (the rod of cadmium) work?

Select an option to see the answer and solution.

Q239

Who is known as the 'Father of Nuclear Physics'?

Select an option to see the answer and solution.

Q240

The energy emitted by the sun is due to

Select an option to see the answer and solution.

Prev 10 11 12 13 Next