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(b) less than one
(b) very near to the focus of the reflector
(a) 10cm from the mirror
(a) 30cm in front of mirror
(b) negative
A light ray enters from medium A to medium B. The refractive index of medium Be to medium A will be relativ
(b) less than one
(b) less than one
See lessIn tourches search lights and head lights of vehicle the bulb is placed
(b) very near to the focus of the reflector
(b) very near to the focus of the reflector
See lessA virtual, erect and magnified image of an object is to be produced with a concave mirror of focal length 12cm. Object may be placed at a distance of
(a) 10cm from the mirror
(a) 10cm from the mirror
See lessRays from sun converge at a point 15cm in front of a concave mirror. Where should an object be placed so that size of the image is exactly equal to the size of the object?
(a) 30cm in front of mirror
(a) 30cm in front of mirror
See lessIn case of a real an inverted image the magnification of a mirror is
(b) negative
(b) negative
See less