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Day 196: MHT-CET Physics

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

  1. Question 1

    Wave Optics. Asked once: 19 Apr 2025 S2 (same type asked 11 times) See all 11 of this type

    31
    In Fraunhofer diffraction pattern, slit width is 0.2 mm and screen is at 2 m away from the lens. If the distance between the first minimum on either side of the central maximum is 1 cm , the wavelength of light used is

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  2. Question 2

    Wave Optics. Asked once: 19 May 2026 S1 (same type asked 10 times) See all 10 of this type

    142
    In a biprism experiment, using a light of wavelength 4800 A˚4800\ \mathrm{\mathring{A}}, a steady interference pattern was obtained on a screen 11 m away from the source. Now the source is replaced by another of wavelength 6400 A˚6400\ \mathrm{\mathring{A}} and the screen is moved away from it by 2020 cm. The fringewidth will

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  3. Question 3

    AC Circuits. Asked once: 15 May 2026 S2 (same type asked 10 times) See all 10 of this type

    137
    An AC source is 120120 V - 6060 Hz. The value of voltage after 1720\dfrac{1}{720} s from start will be (sin⁡30∘=12)\left(\sin 30^\circ = \dfrac{1}{2}\right)

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  4. Question 4

    Electromagnetic Induction. Asked once: 16 Apr 2026 S1 (same type asked 10 times) See all 10 of this type

    139
    A step down transformer has turns ratio 20:1. If 8V are applied across 0.4 Ω0.4\,\Omega secondary then the primary current will be

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  5. Question 5

    Superposition of Waves. Asked once: 4 May 2023 S2 (same type asked 10 times) See all 10 of this type

    19
    A transverse wave travelling along a stretched string has a speed of 30 m/s and a frequency of 250 Hz. The phase difference between two points on the string 10 cm apart at the same instant is

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