Question

co
b. Partial
c. Complete brig
d. Partial brightness
244) Size of the shadow is dependent
a. Size of the source of light
b. Size of the object
c. Distance between light and object
d. All of these
360 Shadow formed by a point source of light has
a. Umbra
b. Penumbra
c. Both Umbra and Penumbra
d. Neither Umbra nor Penumbra
4 Characteristic of image formed by pinhole
a. Inverted
arger than the object
ller than the object
ha &c
ficiency of a machine is
but x input
mut​

Answer 1

Explanation:

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