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Important Questions: Diffraction due to a single slit, width of central maximum for JEE

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Part of Optics in JEE Main Physics.

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Q1PhysicsUnit 16: Optics
A: Coloured spectrum is seen when we look through a cloth R: Diffraction of light takes place when light is travelling through the pores of cloth
Q2PhysicsUnit 16: Optics
A microscope is used with sodium light and its resolving power is not sufficiently large.Higher resolution will be obtained by using wavelength of
Q3PhysicsUnit 16: Optics
The bending of light about corners of an obstacle is called:
Q4PhysicsUnit 16: Optics
The aperture diameter of a telescope is 5 mm. The separation between the moon and the earth is 4×105km.4 \times 10^{5} \mathrm{km} . With light of wavelength of 5500A5500 A, the minimum separation between objects on the surface of moon, so that they are just resolved, is close to?
Q5PhysicsUnit 16: Optics
Light of wavelength 6328A6328 A is incident normally on a slit having a width of 0.2mm.0.2 m m . The angular width of the central maximum measured from minimum to minimum of diffraction pattern on a screen 9.0 meters away will be about

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