Which country hosted the Nuclear Energy Summit

The instrument which uses sound waves to measure the depth of oceans is –

What is the colour of neutral wire?

1) Red

2) Green

3) Black

4) Yellow

Temperature of the Sun is measured by?

Which statement about the properties of light and sound is incorrect? 

The energy possessed by a body due to its position or shape is known as:

Which Nobel Gas is also known as ‘Stranger Gas’?

How much time does a Geostationary satellite take to complete one orbit, at the height of 35790 km?

Consider the following statements:

1. A flute of smaller length produces waves of lower

Pulsars are :

The time period of a second’s pendulum is –