What is the difference between soft and hard X-rays
|
(a) Velocity |
(b) Intensity |
(c) Frequency |
(d) Polarization |
What is the difference between soft and hard X-rays
|
(a) Velocity |
(b) Intensity |
(c) Frequency |
(d) Polarization |
(c) Frequency
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Light waves producing interference have their amplitudes in the ratio 3 : 2. The intensity ratio of maximum and minimum of interference fringes is
|
(a) 36 : 1 |
(b) 9 : 4 |
(c) 25 : 1 |
(d) 6 : 4 |
A neutron with velocity V strikes a stationary deuterium atom, its kinetic energy changes by a factor of
|
(a) |
(b) |
(c) |
(d) None of these |
A uniform electric field pointing in positive x-direction exists in a region. Let A be the origin, B be the point on the x-axis at x = +1 cm and C be the point on the y-axis at y = +1 cm. Then the potentials at the points A, B and C satisfy
|
(a) |
(b) |
(c) |
(d) |
The image of point P when viewed from top of the slabs will be
|
(a) 2.0 cm above P |
(b) 1.5 cm above P |
(c) 2.0 cm below P |
(d) 1 cm above P |