(QUIZ) General Science MCQs : Gist of Physics from NCERT Books
(QUIZ) General Science MCQs : Gist of Physics from NCERT Books
1. Consider the following statements:
- Isobars are atoms of the same element which have different mass numbers.
- Isotopes are atoms having the same mass number but different atomic numbers.
Which of the above statements is/are correct?
- Only 1
- Only 2
- Both 1 & 2
- Neither 1 nor 2
2. Consider the following statements:
- The transfer of heat by radiation does not require any medium.
- In Solids, generally the heat is transferred by the process of conduction.
Which of the above statements is/are correct?
- Only 1
- Only 2
- Both 1 & 2
- Neither 1 nor 2
3. Consider the following statements:
- A concave lens always forms erect, virtual and smaller image than the object.
- A convex lens can forms real and inverted image.
- Concave mirrors are commonly used in search-lights and vehicles headlights.
Which of the above statements is/are correct ?
- Only 1 and 2
- Only 1 and 3
- Only 2 and 3
- All of the above
4. Consider the following statements:
- Conductors are materials which electrical charges and heat energy can be transmitted very easily.
- Semi conductors are materials which allow the electrical charges to flow better than insulators but less than conductors.
Which of the above statements is/are correct ?
- Only 1
- Only 2
- Both 1 & 2
- Neither 1 nor 2
5. Consider the following statements:
- The loudness or softness of a sound is determined basically by its amplitude.
- The amplitude of the sound wave depends upon the force with which an object is made to vibrate.
Which of the above statements is/are correct ?
- Only 1
- Only 2
- Both 1 & 2
- Neither 1 nor 2