Advertisements
Advertisements
प्रश्न
Choose the correct option.
Consider the optically denser lenses P, Q, R, and S drawn below. According to the Cartesian sign convention which of these have a positive focal length?
विकल्प
Only P
Only P and Q
Only P and R
Only Q and S
उत्तर
Only P and Q
APPEARS IN
संबंधित प्रश्न
Answer the following question.
Which phenomena can be satisfactorily explained using ray optics?
Answer the following question.
State the assumptions on which ray optics is based.
A light beam is incident at an angle twice the angle of refraction. The angle of refraction is ______.
If a lens is cut into two pieces perpendicular to the principal axis and only one part is used, the intensity of the image will be ____________.
When a ray of light enters a medium of refractive index µ, then it is observed that the angle of refraction is half the angle of incidence. The value of angle of incidence will be ____________.
