What is the value of acceleration due to gravity at the center of the earth?
A pond of water appears less deep due to –
Gamma rays have greatest similarity with –
The apparent weight of a person in a lift moving downward with uniform acceleration is:
For a cell terminal potential difference is 3.5 V when circuit is open and reduces to 2.5 V when cell is connected to a resistance of R = 10Ω then...
Pycnometer is an instrument used to measure the –
Which of the following electromagnetic waves are used for detection like Geiger tubes?
The unit of measurement of noise is –
Which of the following is caused due to the Newton’s first law of motion?
I. When a motorcar makes a sharp turn at a high speed, we tend to ...
The colour of sky appears blue due to –
