Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET2007PhysicsMagnetic Properties of Matter

In a double slit experiment, the distance between slits is increased 10 times whereas their distance from screen is halved, then what is the fringe width?

Options

  1. AIt remains same
  2. BBecomes 1 / 10
  3. CBecomes 1 / 20
  4. DBecomes 1 / 90

Correct answer

C. Becomes 1 / 20

Step-by-step solution

Let be wavelength of monochromatic light, d the distance between coherent sources, and D the distance between screen and source, then fringe width is = D d Given, d₁=d, D₁=D, d₂=10 d, D₂= D 2 ₂= D 2 10 d = D 20 d ₂= W 20

Practice Magnetic Properties of Matter on Quantrex Academy →

More from Magnetic Properties of Matter

On both sides of a magnetic needle, two short magnets A and B are placed on the same horizontal line which is perpendicular to the magnetic meridian. The south poles of A and B are 2026The material selected for making a permanent magnet should have: 2026A bar magnet of length 12 cm is placed such that its north pole points towards the geographic north. Two neutral points which are separated by 16 cm are obtained on the equatorial 2026Paramagnetic substances 2026If a paramagnetic bar is brought near a bar magnet, then it is 2026Pick out the WRONG statements about magnetic substances. ( = magnetic susceptibility) ( _r = relative permeability). I. Substances with -1 II. Substances with 1 are paramagnetic. I 2026The periodic time of a magnet in vibration magnetometer is T₀ . If a magnet is replaced by another magnet whose moment of inertia is three times and magnetic moment is one-third of 2026The frequency of oscillation of a small magnet in a magnetic field of induction 'B' is ' n '. If the frequency of oscillations of the same magnet in a field of induction 'X' falls 2026 Full Magnetic Properties of Matter list All MHT CET PYQs