GENERAL KNOWLEDGE

Detailed explanation-1: -Yes, light is affected by gravity, but not in its speed. General Relativity (our best guess as to how the Universe works) gives two effects of gravity onlight. It can bend light (which includeseffects such as gravitational lensing), and it can change the energy oflight.

Detailed explanation-2: -Gravity bends light Light travels through spacetime, which can be warped and curved-so light should dip and curve in the presence of massive objects. This effect is known as gravitational lensing GLOSSARY gravitational lensingThe bending of light caused by gravity .

Detailed explanation-3: -The presence of matter curves space, and the path of a light ray will be deflected as a result. This process is called gravitational lensing because of its similarity to the way normal lenses bend light rays that pass through them. Einstein predicted that light rays would be bent by the gravity of massive objects.

Detailed explanation-4: -gravity affects things while they are falling but stops when they reach the ground. It does not operate on things that are moving upwards. gravity acts upwards on things that are moving upwards.

Detailed explanation-5: -Before he worked out the general theory of relativity, Einstein had already deduced that gravity must affect a light wave’s frequency and wavelength. Light moving upwards from Earth’s surface, for example, shifts to longer wavelength and lower frequency, as gravity saps it of some energy.