Back to Questions

Which one of the following statements is not correct for light rays?

General Ability 2021 NDA General Ability 2021 NDA 2021

Options

Light travels at different speeds in different media.

Light travels at almost 300 million metres per second in air.

Light speeds down as it leaves a water surface and enters the air.

Light speeds up as it leaves a glass surface and enters the air.

‘Operation Cactus’ is the name given to Indian Military intervention in

Prof. Vijay Raghavan, an Indian scientist, who has been elected Fellow of Royal Society in…

The UN has recently passed a resolution against human right violation in a South Asian…

A high level committee set up by the Ministry of Housing and Urban Poverty Alleviation…

Suppose, the Naxalites have kidnapped a Deputy Commissioner from Baster region in Chhattisgarh and taken…