DAE PHY 132 Chapter 9 MCQs

DAE | PHY-132

APPLIED PHYSICS 

CHAPTER : 09

DIPLOMA OF ASSOCIATE ENGINEERING

EXAM PRAPARATION

COMMON WITH:

DAE IN COMPUTER INFORMATION TECHNOLOGY

MULTIPLE CHOICE QUESTION

Chapter:09 (Lasers)

Question 1:

The corpuscular theory of light was put forward by

Einstein Max Planck Young Newton

Question 2:

Neil Bohr put forward his theory in

1887 1902 1913 1917

Question 3:

When an electron goes from higher energy level to lower energy level it

Emits light Does not emit light Absorbs light None of these

Question 4:

Laser is a device which can produce

An intense beam of light Coherent light Monochromatic light All of these

Question 5:

The most widely used types of gas lasers are

Helium Neon Carbon dioxide All of these

Question 6:

The meta-stable states of atoms are

Excited atomic states of long period De–excited atomic state Ground states of atom None of these

Question 7:

The excited atoms return to their ground state in

\(10^{–8}sec\) \(10^{–5}sec\) \(10^{–3}sec\) \(10^{15}sec\)

Question 8:

An atom can exist in meta-stable state for

\(10^{–5}sec\) \(10^{–3}sec\) \(10^{–8}sec\) \(10^{–10}sec\)

Quiz Results

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INSTRUCTOR

MUHAMMAD BIN JAMEEL

BSC ENGG. CIVIL