Home
Class 11
PHYSICS
[" 19.Sunlight of intensity "1.3kWm^(-2)...

[" 19.Sunlight of intensity "1.3kWm^(-2)" is incident normally on a "],[" thin convex lens of focal length "20cm" .Ignore the energy "],[" loss of light due to the lens and assume that the lens "],[" aperture sjze is much smaller than its focal length.The "],[" average intensity of light,in "kWm^(-2)" ,at a distance "22cm],[" from the lens on the other side is ".............]

Promotional Banner

Similar Questions

Explore conceptually related problems

Sunlight of intensity 1.3kW m^(–2) is incident normally on a thin convex lens of focal length 20 cm. Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in kW m^(–2) , at a distance 22 cm from the lens on the other side is __________.

A thin convex lens of focal length 10 cm and a thin concave lens of focal length 20 cm are in contact. The combination acts as :

A thin convex lens of focal length 10 cm and a thin concave lens of focal length 26.2 cm are in contact. The combination acts as

An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm . The image is formed on the other side of the lens at a distance

A convex lens of focal length 10cm and concave lens of focal length 20 cm are kept 5 cm apart. The focal length of the equivalent lens is