In an interference experiment, third bright fringe is obtained at a point on the screen with a light of 700 nm. What should be the wavelength of the light source in order to obtain 5th bright fringe at the same point
|
(a) 500 nm |
(b) 630 nm |
(c) 750 nm |
(d) 420 nm |
(d) 420 nm
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The sensation of vision in the retina is carried to the brain by
|
(a) Ciliary muscles |
(b) Blind spot |
(c) Cylindrical lens |
(d) Optic nerve |
When 
electrons are removed from a neutral metal sphere, the charge on the sphere becomes
|
(a) 16 μC |
(b) -16 μC |
(c) 32 μC |
(d) -32 μC |
Wavelength of a 1 keV photon is 
. What is the frequency of 1 MeV photon
|
(a) 1.24 |
(b) 2.4 |
(c) 1.24 |
(d) 2.4 |
The power of two convex lenses A and B are 8 diopters and 4 diopters respectively. If they are to be used as a simple microscope, the magnification of
|
(a) B will be greater than A |
(b) A will be greater than B |
|
(c) The information is incomplete |
(d) None of the above |
$\frac{\text{W}}{2}$
$2^{\frac{1}{3}}$ W at the planet.
Find out the value of current through 2Ω resistance for the given circuit
|
(a) 5 A |
(b) 2 A |
(c) Zero |
(d) 4 A |
