Questions (120)
Q1CDS2022
If the magnification produced by a lens is +2, then the image is :
- A erect, virtual and smaller than the object.
- B inverted, real and smaller than the object.
- C erect, virtual and larger than the object. ✓
- D inverted, real and larger than the object.
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
Q2CDS2022
What is the correct sequence of resistivity of silver, nichrome and glass at room temperature ?
- A Silver < Nichrome < Glass ✓
- B Glass < Nichrome < Silver
- C Silver < Glass < Nichrome
- D Nichrome < Silver < Glass
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
Q3CDS2022
At the time of short-circuit, the current in the circuit :
- A reduces substantially.
- B does not change.
- C increases heavily. ✓
- D keeps on fluctuating.
✓ Correct answer: (C)
Science & Technology › Physics & Chemistry
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