MCQ
On using white light in Young's double slit experiment:
  • A
    Only white and black fringes will be obtained
  • B
    White fringes will be obtained
  • Central fringe will be white but two-three colored fringes will appear black
  • D
    None of the above.

Answer

Correct option: C.
Central fringe will be white but two-three colored fringes will appear black
(C) - Central fringe will be white but two-three colored fringes will appear black

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

Which of the following statements is not true
Figure. shows two processes A and B on a system. Let $\Delta\text{Q}_1$ and $\Delta\text{Q}_2$ be the heat given to the system in processes A and B respectively. Then,
The image distance of an object placed 10 cm in front of a thin lens of focal length + 5 cm is
$X-$ rays and gamma rays are both electromagnetic waves. Which of the following statements is true
The magnetic field at the centre of a circular coil of radius $r$ carrying current $I$ is ${B_1}$. The field at the centre of another coil of radius $2 r$ carrying same current $I$ is ${B_2}$. The ratio $\frac{{{B_1}}}{{{B_2}}}$ is
The maximum wavelength of radiation that can produce photoelectric effect in a certain metal is 200 nm. The maximum kinetic energy acquired by electron due to radiation of wavelength 100 nm will be
If an insulated non-conducting sphere of radius R has charge density ρ. The electric field at a distance r from the centre of sphere (r < R) will be
 
A slit of width a is illuminated by white light. For red light (λ = 6500 Å), the first minima is obtained at θ = 30°. Then the value of a will be
A foil of aluminium of negligible thickness is inserted in between the space of a parallel plate condenser. If the foil is electrically insulated, the capacity of the condenser will:
A capacitor stores $60\ \mu C$ charge when connected across a battery. When the gap between the plates is filled with a dielectric , a charge of $120\ \mu C$ flows through the battery. The dielectric constant of the material inserted is :