$0$
$\delta$
$2\delta$
$3\delta$
Explanation:
In combination (refractive angles of prisms reversed with respect to each other), the deviations through two prisms cancel out each other and the net deviation is due to the third prism only.
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In a fission process, nucleus A divides into two nuclei B and C, their binding energies being 
and 
respectively. Then
|
(a) |
(b) |
(c) |
(d) |
What are the colours of the Sun observed most during sunrise/sunset and noon?
What kind of image is obtained always for concave lens?
The wavelength of yellow line of sodium is 5896 Å. Its wave number will be
|
(a) 50883 × 1010 per second |
(b) 16961 per cm |
|
(c) 17581 per cm |
(d) 50883 per cm |
A chain reaction is continuous due to
|
(a) Large mass defect |
|
(b) Large energy |
|
(c) Production of more neutrons in fission |
|
(d) None of these |
AB is a wire of uniform resistance. The galvanometer G shows no current when the length AC = 20cm and CB = 80 cm. The resistance R is equal to
|
(a) 2 Ω |
(b) 8 Ω |
(c) 20 Ω |
(d) 40 Ω |
