In Young's double slit experiment, the phase difference between the light waves reaching third bright fringe from the central fringe will be (λ =6000 Å )
|
(a) Zero |
(b) 2π |
(c) 4 π |
(d) 6 π |
(d) 6 π
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The light when enters the human eye experiences most of the refraction while passing through
|
(a) Cornea |
(b) Aqueous humour |
(c) Vitrous humour |
(d) Crystalline lens |
A uniform electric field and a uniform magnetic field are produced, pointed in the same direction. An electron is projected with its velocity pointing in the same direction
|
(a) The electron will turn to its right |
|
(b) The electron will turn to its left |
|
(c) The electron velocity will increase in magnitude |
|
(d) The electron velocity will decrease in magnitude |
A study of binary stars is most helpful in
|
(a) Finding their distances |
(b) Finding their temperature |
|
(c) Finding their masses |
(d) Verifying Newton's force law of gravitation |
Suppose a planet goes around Sun with a linear speed twice as fast that of earth. What will be it's orbit size as compared to that of earth ? (Radius of earth = R)
|
(a) R / 4 |
(b) R / 2 |
(c) R |
(d) 2R |
The dimension of the magnetic field intensity B is
|
(a) |
(b) |
(c) |
(d) |
