Wave Optics — Important Questions
Telangana Open School (TOSS) · Class 12 · Physics
54 important questions from Wave Optics for Telangana Open School (TOSS) Class 12 Physics, with answers. Written for the board exams 2027.
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Important Questions from Wave Optics
Which colour of light is deviated the most by a prism?
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Violet
Violet light has the shortest wavelength and highest refractive index in glass, so it bends the most.
The sky appears blue because of:
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Scattering of light
Shorter wavelengths like blue are scattered more by air molecules, making the sky appear blue.
What is the phase difference for constructive interference?
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2nπ radians
Constructive interference occurs when the phase difference is an even multiple of π, i.e., 2nπ.
Which of the following is NOT a condition for observing diffraction?
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Use of monochromatic light
Monochromatic light is not essential for diffraction; it can occur with white light too, though patterns may blur.
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