Day 138: CBSE Class 10 Science
5 questions. Try each one first, then open its answer.
Question 1
Electricity. Asked once: 2025 (same type asked 2 times)
Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.19Assertion (A) : Nichrome is an alloy which is commonly used in electrical heating devices such as electric irons, toasters, etc. Reason (R) : The resistivity of nichrome is high and its resistance decreases with increase in temperature.Tap an option to check your answer.
Question 2
How do Organisms Reproduce?. Asked once: 2024 (same type asked 2 times)
Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.18Assertion (A) : Offsprings produced by asexual reproduction are genetically similar to the parents. Reason (R) : Asexual reproduction involves a single parent.Tap an option to check your answer.
Question 3
Life Processes. Asked once: 2025 (same type asked 2 times)
23State the main function of arteries. Why do they have thick and elastic walls ?Question 4
Life Processes. Asked once: 2023 (same type asked 2 times)
8Observe the following diagram and identify the process and its significance from the following options :Tap an option to check your answer.
Question 5
Magnetic Effects of Electric Current. Asked once: 2026 (same type asked 2 times)
Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.32Assertion (A) : The needle of a magnetic compass kept in strong external magnetic field, always aligns itself in north-south direction on the earth. Reason (R) : Behaviour of the needle of a compass is same as that of a freely suspended bar magnet.Tap an option to check your answer.