Download App

Wave Optics — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
Question

Angular  width (b) of central maximum of a diffraction pattern on a single slit does not depend upon

(a) Distance between slit and source

(b) Wavelength of light used

(c) Width of the slit

(d) Frequency of light used
✓

Answer

(a) Distance between slit and source

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q [1M]" from Wave Optics→Wave Optics — all question types→Physics STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

When a semiconductor is heated, its resistance

(a) Decreases

(b) Increases

(c) Remains unchanged

(d) Nothing is definite
→
The switches in figure are closed at t = 0 and reopened after a long time at t = t0:

  1. The charge on C just after t = 0 is $\in\text{C}.$
  2. The charge on C long after t = 0 is $\in\text{C}.$
  3. The current in L just before t = t0 is $\frac{\in}{\text{R}}.$
  4. The current in L long after t = t0 is $\frac{\in}{\text{R}}.$
→

Two long parallel wires are at a distance 2d apart. They carry steady equal currents flowing out of the plane of the paper, as shown. The variation of the magnetic field B along the line XX’ is given by

(a)

(b)

(c)

(d)
→
When the nucleus of a radioactive element emits an alpha particle, the atomic number is decreased by:
→
An object is released from rest. The time it takes to fall through a distance h and the speed of the object as it falls through this distance are measured with a pendulum clock. The entire apparatus is taken on the moon and the experiment is repeated:
  1. The measured times are same.
  2. The measured speeds are same.
  3. The actual times in the fall are equal.
  4. The actual speeds are equal.
→

Which of the following electromagnetic waves have minimum frequency

(a) Microwaves

(b) Audible waves

(c) Ultrasonic waves

(d) Radiowaves
→

A light ray is incident by grazing one of the face of a prism and after refraction ray does not emerge out, what should be the angle of prism while critical angle is C

(a) Equal to 2C

(b) Less than 2C

(c) More than 2C

(d) None of the above
→
Solve the previous question if the closed loop is completely enclosed in the circuit containing the switch.
  1. An anticlockwise current-pulse.
  2. A clockwise current-pulse.
  3. An anticlockwise current-pulse and then a clockwise current-pulse.
  4. A clockwise current-pulse and then an anticlockwise current-pulse.
→

The magnetic susceptibility of any paramagnetic material changes with absolute temperature T as

(a) Directly proportional to T

(b) Remains constant

(c) Inversely proportional to T

(d) Exponentially decaying with T
→

A magnetic field

(a) Always exerts a force on a charged particle

(b) Never exerts a force on a charged particle

(c) Exerts a force, if the charged particle is moving across the magnetic field lines

(d) Exerts a force, if the charged particle is moving along the magnetic field lines
→