In the Young’s double slit experiment, the intensity of light at a point on the screen (where the path difference is λ) is K, (λ being the wavelength of light used). The intensity at a […]
Wavefront is the locus of all points, where the particles of the medium vibrate with the same
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(a) phase (b) amplitude (c) frequency (d) period
Correct Answer:
phase
Explanation:
On the wave front, […]
To observed diffraction, the size of the obstacle
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(a) should be much larger than the wavelength (b) has no relation to wavelength (c) should be of the order of wavelength (d) should […]
The condition for obtaining secondary maxima in the diffraction pattern due to single slit is
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(a) a sin θ=nλ/2 (b) a sin θ=(2n-1)λ/2 (c) a sin θ=nλ (d) a sin θ=(2n-1)λ
Correct […]
Find the right condition(s) for Fraunhofer diffraction due to a single slit.
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(a) Source is at infinite distance and the incident beam has converged at the slit (b) Source is near to […]
Light of wavelength λ is incident on slit of width d. The resulting diffraction pattern is observed on a screen placed at distance D. The linear width of central maximum is equal to width of […]
In a diffraction pattern due to a singleslit of width a, the first minimum is observed at an angle 30⁰ when light of wavelength 5000Å is incident on the slit. The first secondary maximum is […]
The intensity at the maximum in a Young’s double slit experiment is I₀. Distance between two slits is d=5λ, where λ is the wavelength of light used in the experiment. What will be the intensity […]
If a solid ball of metal has a concentric spherical cavity with in it if the ball is heated the volume of the cavity will
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(a) increase (b) decrease (c) remains unchanged […]
In the adiabatic compression, the decrease in volume associated with
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(a) increase in temperature and decrease in pressure (b) decrease in temperature and increase in pressure (c) decrease in temperaturee and decrease […]
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