✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
(III) If the intensity of the incident radiation for both metals A and B, is doubled keeping its frequency constant, then
A
the slope of the parallel lines will increase.
B
the slope of the parallel lines will decrease.
C
the threshold frequencies for both A and B will decrease.
D
the slope of the parallel lines will not change but more electrons will be emitted per second.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 55-1 | Set 1 | Question (III) |
| CBSE 2026 | Series 55-1 | Set 2 | Question (III) |
| CBSE 2026 | Series 55-1 | Set 3 | Question III |
02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN
- Step 1: Stating the fundamental formula / law statement (+1 Mark)
- Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
- Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)