Subject - General Science
Chapter : Gist of Physics from NCERT Books

1. Consider the following statements:

1. Isobars are atoms of the same element which have different mass numbers.

2. Isotopes are atoms having the same mass number but different atomic numbers.

Which of the above statements is/are correct?

1. Only 1

2. Only 2

3. Both 1 & 2

4. Neither 1 nor 2

2. Consider the following statements:

1. The transfer of heat by radiation does not require any medium.

2. In Solids, generally the heat is transferred by the process of conduction.

Which of the above statements is/are correct?

1. Only 1

2. Only 2

3. Both 1 & 2

4. Neither 1 nor 2

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