RRB GROUP D Physics Quiz - 17

Attempt now to get your rank among 3 students!

Question 1:

Friction can be reduced by using-

Question 2:

Which of the following characteristics of sound helps to distinguish one sound from another?

Question 3:

The LED is a P-N junction diode that produces light as it passes via an electric current in the forward path. What does abbreviation LED stand for?

Question 4:

What is geodynamo?

Question 5:

Flux meter was invented by-

Question 6:

If the earth stops rotating, the apparent value of g on the earth surface will -

Question 7:

A nautical mile is the meridian arc length corresponding to one minute of latitude, a nautical mile is equal to

Question 8:

Which of the following is a non-dimensional quantity?

Question 9:

Infrasonic waves are sound waves, infrasonic waves have frequency

Question 10:

Energy in foods can be measured in which units-