CBSE Class 10 Answered
Practical 12: Tracing the path of the rays of light through a glass prism.
1. After tracing the path of rays of light through a glass slab for three different
angles of incidence, a student measured the corresponding values of the angle
of refraction r and the angle of emergence e and recorded them in the table
shown below: [2]
Sr. No. i r e
I. 30 20 31
II 50 31 49
III 40 25 40
The correct observations are
A. I and III
B. III and II
C. I and II
D. I, II and III
Asked by varakalasuchi3 | 28 Feb, 2018, 09:24: PM
Expert Answer
i, r and e are angle of incidence, angle of refraction and angle of emergence. As per the law of refraction, ( sin i / sin r ) and ( sin e / sin r ) should give refractive index of glass that is equal to 1.52. As we see from the last two columns, maximum error is 4% . if 4% error is allowed for experimental results,
then all observations are correct.
Answered by Thiyagarajan K | 01 Mar, 2018, 06:37: AM
CBSE 10 - Science
Asked by sony.lucky455 | 02 Apr, 2024, 03:23: PM
ANSWERED BY EXPERT
CBSE 10 - Science
Asked by sagarmishra | 18 Mar, 2024, 04:10: PM
ANSWERED BY EXPERT
CBSE 10 - Science
Asked by srinivasansriharinia9 | 01 Mar, 2024, 08:17: PM
ANSWERED BY EXPERT
CBSE 10 - Science
Asked by muskanprayagraj78 | 26 Feb, 2024, 05:44: PM
ANSWERED BY EXPERT
CBSE 10 - Science
Asked by kmannatpreet4 | 21 Feb, 2024, 07:34: PM
ANSWERED BY EXPERT
CBSE 10 - Science
Asked by umaambiger87 | 08 Feb, 2024, 03:28: PM
ANSWERED BY EXPERT
CBSE 10 - Science
Asked by pvasanth3573 | 07 Feb, 2024, 10:13: PM
ANSWERED BY EXPERT
CBSE 10 - Science
Asked by samirankarmakar2702 | 07 Feb, 2024, 09:59: PM
ANSWERED BY EXPERT