PYQ Vault

Day 203: CBSE Class 10 Science

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

  1. Question 1

    Light — Reflection and Refraction. Asked once: 2023 (same type asked 2 times)

    7
    In torch lights and head lights of vehicles, the bulb is placed

    Tap an option to check your answer.

  2. Question 2

    Electricity. Asked once: 2022 (same type asked 5 times)

    4 (a)
    An electric heater rated 1100 W operates at 220 V. Calculate (i) its resistance, and (ii) the current drawn by it.

  3. Question 3

    Magnetic Effects of Electric Current. Asked once: 2023 (same type asked 5 times)

    32 (B)
    For the current carrying solenoid as shown, draw magnetic field lines and give reason to explain that out of the three points A, B and C, at which point the field strength is maximum and at which point it is minimum ?

  4. Question 4

    Magnetic Effects of Electric Current. Asked once: 2022 (same type asked 5 times)

    2 OR
    “Magnetic field is a physical quantity that has both direction and magnitude.” How can this statement be proved with the help of magnetic field lines of a bar magnet ?

  5. Question 5

    Our Environment. Asked once: 2024 (same type asked 5 times)

    26
    Name the term used for the materials which cannot be broken down by biological processes. Give two ways by which they harm various components of an ecosystem.