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UPSC CAPF AC Paper - I
IMPORTANT
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In any fission process, the ratio mass of fission products is mass of parent nucleus

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Important Questions on Physics

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 84
The resistivity of a semiconductor depends on _____.
HARD
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 85

The efforts to detect the existence of Higgs Boson particles have become frequent news in the recent past. What is/are the importance/importances of discovering this particle? 

1. It will enable us to understand as to why elementary particles have mass.

2. It will enable us in the near future to develop the technology of transferring matter from one point to another without traversing the physical space between them.

3. It will enable us to create better fuels for nuclear fission.

Select the correct answer using the codes given below:

EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 86
The β-ray in a radioactive disintegration is similar to
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 87

An n-type semiconductor is

1. positively charged

2. negatively charged

3. neutral (electrically)

4. charged depends upon its biasing

Which statements is/are correct?

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 88
Range of wavelength between range of wavelength of ultraviolet rays and infrared rays is
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 89
Principle of Hydrogen Bomb is based on
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 90

Doping of semiconductor

1. increases its conductivity

2. decreases its conductivity

3. increases its resistivity

4. decreases its resistivity

Which option is correct?

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 9 - Physics>Exercise 7>Q 91
For a given Light wave incident on metal surface kinetic energy of photo electron