✓ 2 MARKS
Definitions / Laws
🔥 APPEARED IN 3 BOARD SETS
State Huygens principle. Using it draw a diagram showing the details of passage of a plane wave from a denser into a rarer medium.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2024 | Series Other | Set 1 | Question 20 |
| CBSE 2024 | Series Other | Set 1 | Question 19 |
| CBSE 2024 | Series Other | Set 1 | Question 21 |
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)