Question

Optics Box

While visiting an exhibition, Raju and Ravi observed different types of images. They want to form similar images using their father's optics box having materials such as a plane mirror, convex mirror, concave mirror, all types of lenses, v stand, matchbox, candle, laser light, prism, and glass slab.

1.To observe a virtual, diminished image of a candle flame, they have to select………from the optics box:

A. plane mirror, concave lens
B. prism, glass slab
C. concave lens, convex mirror
D. concave mirror, convex lens

2.To burn the cotton without a matchbox they selected ____ mirror of radius of curvature 30 cm and placed it towards sunlight. For the burning of cotton, they placed at a distance of ____ from the mirror.

A. Convex mirror, 15 cm
B. Concave mirror, 15 cm
C. Convex mirror, 30 cm
D. Concave mirror, 30 cm​

Answer 1

Answer: 1.B. prism, glass slab   2.A. Convex mirror, 15 cm

Explanation: it right