PYQ Vault

Day 192: CBSE Class 10 Science

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

  1. Question 1

    Electricity. Asked once: 2023 (same type asked 4 times)

    36 (a)
    (i) What is meant by resistance of a conductor ? Define its SI unit. (ii) List two factors on which the resistance of a rectangular conductor depends. (iii) How will the resistance of a wire be affected if its (1) length is doubled, and (2) radius is also doubled ? Give justification for your answer.

  2. Question 2

    Electricity. Asked once: 2023 (same type asked 4 times)

    13
    Two LED bulbs of 12W and 6W are connected in series. If the current through 12W bulb is 0.06A the current through 6W bulb will be :

    Tap an option to check your answer.

  3. Question 3

    Electricity. Asked once: 2025 (same type asked 4 times)

    32
    Consider the following electric circuit : Calculate the values of the following : (a) The total resistance of the circuit (b) The total current drawn from the source (c) Potential difference across the parallel combination of 10 Ω10\,\Omega and 15 Ω15\,\Omega resistors

  4. Question 4

    Heredity. Asked once: 2023 (same type asked 4 times)

    10
    A cross between pea plant with white flowers (vv) and pea plant with violet flowers (VV) resulted in F2\mathrm{F_2} progeny in which ratio of violet (VV) and white (vv) flowers will be :

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  5. Question 5

    How do Organisms Reproduce?. Asked once: 2025 (same type asked 4 times)

    7
    Plants like rose and banana have lost the capacity to produce :

    Tap an option to check your answer.