Download App

Wave Optics — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsWave Optics1 Mark
Question
Assertion :  For best contrast between maxima and minima in the interference pattern of Young’s double slit experiment, the intensity of light emerging out of the two slits should be equal.
Reason     : The intensity of interference pattern is proportional to square of amplitude.(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
 
 
 
 
✓

Answer

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

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 (1 Marks)" from Wave Optics→Wave Optics — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

The equivalent resistance of the arrangement of resistances shown in adjoining figure between the points $A$ and $B$ is
→
A sonometer wire of length l vibrates in fundamental mode when excited by a tuning fork of frequency $416\ Hz$. If the length is doubled keeping other things same, the string will:
→
Intensity of an electric field $E$ due to a dipole, depends on distance $r$ as
 
→
A small, conducting circular loop is placed inside a long solenoid carrying a current. The plane of the loop contains the axis of the solenoid. If the current in the solenoid is varied, the current induced in the loop is:
→
The grid in a triode valve is used(a) To increases the thermionic emission(b) To control the plate to cathode current(c) To reduce the inter-electrode capacity(d) To keep cathode at constant potential
 
 
 
 
→
For a glass prism, the angle of minimum deviation will be smallest for the light of:
→
An element $A$ decays into element $C$ by a two step process :
$\begin{aligned} & \mathrm{A} \rightarrow \mathrm{B}+2^{\mathrm{He}^4} \\ & \mathrm{~B} \rightarrow \mathrm{C}+2^{\mathrm{e}^{-}}\end{aligned}$
Then
→
Who proved the absence of backward wave in Huygens' theory of secondary waves?
→
Assertion : Ultraviolet radiation are of higher frequency waves are dangerous to human being.
Reason    : Ultraviolet radiation are absorbed by the atmosphere(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.
 
 
 
 
→
The force of viscosity is:
  1. Electromagnetic.
  2. Gravitational.
  3. Nuclear.
  4. Weak.
→