- Reflection.
- Refraction.
- Diffraction.
- Dispersion.
Explanation:
When the light strikes on a surface nearly parallel to it, it then bends by a small and fixed angle after reflection. Also, when the light travels from one medium to another with slight differences in their refractive indices, it bends by a small angle. Thus, the bending of light by a small but fixed angle can be the case of either reflection or refraction.
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In the given figure the capacitors have a capacitance 4mF each if the capacitor
has a capacitance 10mF, then effective capacitance between A and B will be
|
(a) 2mF |
(b) 4mF |
(c) 6mF |
(d) 8mF |
In a biprism experiment, by using light of wavelength 5000 Å, 5 mm wide fringes are obtained on a screen 1.0 m away from the coherent sources. The separation between the two coherent sources is
|
(a) 1.0 mm |
(b) 0.1 mm |
(c) 0.05 mm |
(d) 0.01 mm |
In N-type semiconductors, majority charge carriers are
|
(a) Holes |
(b) Protons |
(c) Neutrons |
(d) Electrons |
The maximum number of possible interference maxima for slit-separation equal to twice the wavelength in Young’s double-slit experiment is
|
(a) Infinite |
(b) Five |
(c) Three |
(d) Zero |
To induce an e.m.f. in a coil, the linking magnetic flux
|
(a) Must decrease |
(b) Can either increase or decrease |
|
(c) Must remain constant |
(d) Must increase |
A ray of light incidents on a plane mirror at an angle of 30°. The deviation produced in the ray is
| (a) 30° | (b) 60° | (c) 90° | (d) 120° |
The muscles of a normal eye are least strained when the eye is focused on an object:
The electric field near a conducting surface having a uniform surface charge density σ is given by
|
(a) |
(b) |
|
(c) |
(d) |