✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
Paschen series in spectrum of hydrogen atom lies in :
A
infrared region
B
ultraviolet region
C
visible region
D
partly in ultraviolet region and partly in visible region
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 55-4 | Set 1 | Question 11 |
| CBSE 2026 | Series 55-4 | Set 2 | Question 5 |
| CBSE 2026 | Series 55-4 | Set 3 | Question 6 |
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)