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(d) All of these
(a) Convex lens
(d) None of these
Light from the sun should not be focused on to:—
(d) All of these
(d) All of these
See lessThe lens called as a magnifying glass is:—
(a) Convex lens
(a) Convex lens
See lessWhich of the following character of light is altered on reflection?
(d) None of these
(d) None of these
See less