PYQ Vault

Day 165: MHT-CET Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Optics (Ray). Asked 2 times: 11 May 2023 S1, 12 May 2024 S2 See all 2 times it was asked

    34
    An ink mark is made on a piece of paper on which a glass slab of thickness 'tt' is placed. The ink mark appears to be raised up through a distance 'xx' when viewed at nearly normal incidence. If the refractive index of the material of glass slab is 'μ\mu' then the thickness of glass slab is given by

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  2. Question 2

    Optics (Ray). Asked 2 times: 15 May 2023 S2*, 12 May 2024 S2 (* = numbers or wording changed that year) See all 2 times it was asked

    48
    A glass prism deviates the red and violet rays through 9°9° and 11°11° respectively. A second prism of equal angle deviates them through 11°11° and 13°13° respectively. The ratio of dispersive power of second prism to first prism is

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  3. Question 3

    Gravitation. Asked 2 times: 10 May 2023 S1*, 12 May 2024 S1 (* = numbers or wording changed that year) See all 2 times it was asked

    46
    Consider a light planet revolving around a massive star in a circular orbit of radius rr with time period TT. If the gravitational force of attraction between the planet and the star is proportional to r−7/2r^{-7/2} then T2T^{2} is proportional to

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  4. Question 4

    Optics (Ray). Asked 2 times: 11 May 2023 S1, 12 May 2024 S1 See all 2 times it was asked

    37
    One of the necessary conditions for total internal reflection to take place is (i=i= angle of incidence, ic=i_{c}= critical angle)

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  5. Question 5

    Rotational Dynamics. Asked 2 times: 4 May 2023 S2*, 12 May 2024 S1 (* = numbers or wording changed that year) See all 2 times it was asked

    34
    A thin uniform circular disc of mass MM and radius RR is rotating with angular velocity ω\omega in a horizontal plane about an axis passing through its centre and perpendicular to its plane. Another disc of same radius but of mass M2\frac{M}{2} is placed gently on the first disc co-axially. The new angular velocity will be

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