Physics

#### If white light is used in the Newton’s rings experiment, the color observed in the reflected light is complementary to that observed in the transmitted light through the same point. This is due to

PhysicsOptics

- change of phase in one of the reflected waves
- change of phase in one of the reflected waves
- change of phase in one of the reflected waves
- change of phase in one of the reflected waves

#### Answer:The correct answer is: change of phase in one of the reflected wavesThe rings observed in reflected light are exactly complementary to those seen in transmitted light. Corresponding to every dark ring in reflected light there is a bright ring in transmitted light. The ray reflected at the upper surface of the air-film suffers no phase change while the ray reflected internally at the lower surface suffers a phase change of

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physics

#### In a Young’s double slit experiment the intensity, at a point where the path difference is (λ being the wavelength of the light used), If denotes the maximum intensity, is equal to

Phase difference path difference

ie,

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ie,

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#### In a Young’s double slit experiment the intensity, at a point where the path difference is (λ being the wavelength of the light used), If denotes the maximum intensity, is equal to

physicsoptics

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ie,

As,

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#### cane filled with water is revolved in a vertical circle of radius 4 metre and the water just does not fall down. The time period of revolution will be -

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#### 2 kg stone at the end of a string 1m long is whirled in a vertical circle at a constant speed. The speed of the stone is 4 m /sec. The tension in the string will be 52 N when the stone is-

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#### In kinetic theory of gases, a molecule of mass m of an ideal gas collides with a wall of vessel with velocity v. The change in the linear momentum of the molecule is-

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