MEDIUM
DRDO MTS Tier - II
IMPORTANT
Earn 100

What is the wavelength of the visible spectrum?

50% studentsanswered this correctly

Important Questions on Physics

EASY
DRDO MTS Tier - II
IMPORTANT
Optic fibres are mainly used for which of the following?
MEDIUM
DRDO MTS Tier - II
IMPORTANT
Old-written material, which cannot be read easily, can be read by:
MEDIUM
DRDO MTS Tier - II
IMPORTANT
How are the dark lines in the solar spectrum formed? 
MEDIUM
DRDO MTS Tier - II
IMPORTANT

Which of the following is/are examples of electromagnetic waves?

1. X-rays

2. Ultrasonic

3. β-rays

4. α-rays

MEDIUM
DRDO MTS Tier - II
IMPORTANT
The correct sequence of various regions in the absorption spectrum is:
EASY
DRDO MTS Tier - II
IMPORTANT

Which of the following statements about the refrigerator is/are correct?

1. It converts electrical energy into heat energy.

2. It converts electrical energy into mechanical energy.

3. It transfers heat from a high temperature to a low temperature.

4. It transfers heat from a low temperature to a high temperature.

EASY
DRDO MTS Tier - II
IMPORTANT
Cryogenic engines find applications in:
MEDIUM
DRDO MTS Tier - II
IMPORTANT

Which of the following take place when the subject speaks untruth while being tested by the polygraph instrument?

1. His blood pressure goes up

2. His pulse quickens

3. His skin darkens

4. He sneezes