Physics
Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre?

-3.75 diopters
3.75 diopters
-11.25 diopters
11.25 diopters

ANSWER DOWNLOAD EXAMIANS APP

Physics
The velocity of sound in air

Decreases with increase of temperature
Does not depend on temperature
Increases with decrease of temperature
Decreases with decrease of temperature

ANSWER DOWNLOAD EXAMIANS APP