Define magnifying power of an optical instrument in term of visual angles. Write the condition when visual angle in maximum for naked eye. Write two possible values for magnification of simple microscope.
Important Questions on Optical Instruments
Draw ray diagram for astronomical telescope in normal adjustment and write its magnifying power and length.
Draw ray diagram of compound microscope. Write its magnifying power in normal adjustment. If objective and eye-piece are interchanged, will it behave like a telescope? Explain.
Draw labelled ray diagram of reflecting telescope, write its magnifying power and write its advantages over refracting telescope.
What do you understand by resolving power and limit of resolution of astronomical telescope and explain their interdependence?
A simple microscope or a magnifying glass with a focal length forms an image at the near point of the eye. Find its magnification.
A man whose least distance of distinct vision is , uses a convex lens of focal length as a magnifying glass. What magnifying power does he obtain?
