In the nuclear reaction: X(n, α)
the term X will be 3
|
(a) |
(b) |
(c) |
(d) |
In the nuclear reaction: X(n, α)
the term X will be 3
|
(a) |
(b) |
(c) |
(d) |
(a)
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Towards the centre of sun
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(a) Density decreases |
(b) Pressure decreases |
|
(c) Temperature decreases |
(d) Density and pressure increases |
For a thermocouple, the neutral temperature is 270℃ and the temperature of its cold junction is 20℃. If there is no deflection in the galvanometer, the temperature of the hot junction should be
|
(a) 210 ℃ |
(b) 540 ℃ |
(c) 520 ℃ |
(d) 209 ℃ |
A convex lens is made of a material having refractive index 1.2. Both the surfaces of the lens are convex. If it is dipped into water $(\mu=1.33),$ it will behave like:
In Young's double slit experiment, if L is the distance between the slits and the screen upon which interference pattern is observed, x is the average distance between the adjacent fringes and d being the slit separation. The wavelength of light is given by
|
(a) |
(b) |
(c) |
(d) |