Question

Four students A, B, C and D selected the following items from the materials available in the science laboratory to perform an experiment to study the refraction of light through a glass slab:
(A) convex lens, glass slab, pins, drawing board, white paper, scale
(B) glass slab, pins, drawing board, scale, white paper, protractor
(C) glass slab, glass prism, candle, screen, pins, scale, drawing board, protractor
(D) concave mirror, pins, glass slab, protractor, white paper, drawing board

Correct choice of the items required is made by the student:
(1) A
(2) B
(3) C
(4) D

Answer 1

To study the refraction of light through a glass slab, one needs a drawing board to perform the experiment, a scale to measure the path lengths, white paper to trace the path, pins to mark the path of the light ray, and a protractor to measure the angles.

Hence, the correct answer is option 2.