Question
The fringe width in Young’s double slit experiment increases when (a) Wavelength increases(b) Distance between the slits increases(c) Distance between the source and screen decreases(d) The width of the slits increases
   
   

Answer

(a) Wavelength increases

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

Similar questions

A conducting gas is in the form of a long cylinder. Current flows through the gas along the length of the cylinder. The current is distributed uniformly across the cross-section of the gas. Disregard thermal and electrostatic forces among the gas molecules. Due to the magnetic fields set up inside the gas and the forces which they exert on the moving ions, the gas will tend to:
You are given several identical resistances each of value R = 10 Ω  and each capable of carrying maximum current of 1 ampere. It is required to make a suitable combination of these resistances to produce a resistance of  5 Ω which can carry a current of 4 amperes. The minimum number of resistances of the type R that will be required for this job(a) 4 (b) 10(c) 8(d) 20
       
A silver and zinc voltameter are connected in series and a current i is passed through them for a time t liberating W gm of zinc. The weight of silver deposited is nearly(a) W       (b) 1.7 W(c) 2.4 W(d) 3.5 W
       
A biconvex lens with equal radii curvature has refractive index 1.6 and focal length 10 cm. Its radius of curvature will be(a) 20 cm (b) 16 cm(c) 10 cm (d) 12 cm
       
Two short magnets placed along the same axis with their like poles facing each other repel each other with a force which varies inversely as(a) Square of the distance(b) Cube of the distance(c) Distance(d) Fourth power of the distance
   
   
For measuring voltage of any circuit, potentiometer is preferred to voltmeter because:
A wire moves with a velocity v through a magnetic field and experiences an induced charge separation as shown in the figure. Then the direction of the magnetic field is
Image
Consider a wheel of a bicycle rolling on a level road at a linear speed $v_0:$
  1. The speed of the particle $A$ is zero.
  2. The speed of $B, C$ and $D$ are all equal to $v_0.$
  3. The speed of $C$ is $2v_0.$
  4. The speed of $B$ is greater than the speed of $O.$
Two long and parallel wires are at a distance of $0.1 m$ and a current of $5 A$ is flowing in each of these wires. The force per unit length due to these wires will be
Three capacitors of capacitances $6\mu\text{F}$ each are available. The minimum and maximum capacitances, which may be obtained are: