If I0 is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled?
(1) 2I0
(2) 4I0
(3) I0
(4) I0/2
1 Answers
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(a) In a single slit diffraction experiment, the width of the slit is made double the original width.
(a) In a single slit diffraction experiment, if the width of the slit is made double the original width, then the size of the central diffraction band reduces to half...
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The inverse square law of intensity (i.e., the intensity ∝ 1/r^2) is valid for a (a) point source (b) line source
(a) point source EXPLANATION: Only for a point source the intensity can be written as I = E/4πr², where E is the strength of the source. Hence E ∝ 1/r².
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Two coherent sources of different intensities send waves which interfere. The ratio of maximum intensity to the minimum intensity is 25.
The correct answer is (c) 9 : 4 EXPLANATION: Since the resultant field at a point is given as E₀² = E₁² + E₂² + 2E₁E₂ cosδ Where E₁ and E₂ = amplitudes...
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In producing a pure spectrum, the incident light is passed through a narrow slit placed in the focal plane of an achromatic lens because a narrow slit
(d) allows a more parallel beam when it passes through the lens.
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When an unpolarized light of intensity I_0 is incident on a polarizing sheet, the intensity of the light which does not get transmitted is
The correct answer is (1) When unpolarised light of intensity Io is incident on a polarizing sheet, only Io/2 is transmitted.
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If the light moving in a straight line bends by a small but fixed angle, it may be a case of (a) reflection (b) refraction (c) diffraction
(d) It occurs in both reflection & refraction & the angle of bending rays is constant.
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A heated body emits radiation which has maximum intensity near the frequency v0.
The correct answer is (a) (c) (a) the maximum intensity of radiation will be near the frequency 2v0 (c) the total energy emitted will increase by a factor of 16.
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In a single slit diffraction experiment, when a tiny circular obstacle is placed in the path of light from a distant source,
The waves diffracted at the edge of circular obstacle produce constructive interference at the centre of the shadow; producing a bright spot. Difference between Interference and Diffraction Interference Diffraction 1. All bright fringes are of...
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In a single-slit diffraction experiment, the width of the slit is made double the original width.
In single slit diffraction experiment fringe width is β = 2λD/d If d is doubled, the width of central maxima is halved. Thus size of central maxima is reduced to half. Intensity...
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What is the maximum number of electrons that can be accommodated in an atom in which the highest principal quantum number is 4?
1s2 ,2s2 ,2p6 ,3s2 ,3p6 ,4s2 ,3d10,4p6 = 36 electrons can accommodated.
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