PYQ Vault

Day 106: CBSE Class 10 Science

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

  1. Question 1

    Electricity. Asked once: 2024 (same type asked 2 times)

    32
    Draw a schematic diagram of a circuit consisting of a battery of four dry cells of 1.5 V each, a 2 Ω2\,\Omega resistor, a 6 Ω6\,\Omega resistor, 16 Ω16\,\Omega resistor and a plug key all connected in series. Put an ammeter to measure the current in the circuit and a voltmeter across the 16 Ω16\,\Omega resistor to measure potential difference across its two ends. Use Ohm’s law to determine (a) ammeter reading, and (b) voltmeter reading when key is closed.

  2. Question 2

    Heredity. Asked once: 2024 (same type asked 2 times)

    12
    Sex determination depends upon the environment in

    Tap an option to check your answer.

  3. Question 3

    How do Organisms Reproduce?. Asked once: 2025 (same type asked 2 times)

    32
    Differentiate between a gamete and a zygote. State their significance in sexual reproduction.

  4. Question 4

    How do Organisms Reproduce?. Asked once: 2025 (same type asked 2 times)

    8
    In a bisexual flower the male gametes are present in the :

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  5. Question 5

    How do Organisms Reproduce?. Asked once: 2025 (same type asked 2 times)

    24 (a)
    Write one function each of the following, in a seed : (i) Seed coat (ii) Cotyledon (iii) Radicle (iv) Plumule