PYQ Vault

Day 211: 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
    A student wants to obtain an erect image of an object using a concave mirror of 10 cm focal length. What will be the distance of the object from mirror ?

    Tap an option to check your answer.

  2. Question 2

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

    32
    What is a solenoid ? When does a solenoid behave as a magnet ? Draw the pattern of the magnetic field produced inside it showing the directions of the magnetic field lines.

  3. Question 3

    Our Environment. Asked once: 2023 (same type asked 5 times)

    25
    What is the difference between biodegradable and non-biodegradable substances ? List two methods of safe disposal of biodegradable domestic waste.

  4. Question 4

    Control and Coordination. Asked once: 2024 (same type asked 4 times)

    24 (A)
    In which region of the brain is (i) medulla and (ii) cerebrum located ? State one function of each.

  5. Question 5

    Electricity. Asked once: 2024 (same type asked 4 times)

    25
    Use Ohm’s law to determine the potential difference across the 3 Ω3\,\Omega resistor in the circuit shown in the following diagram when key is closed :