Question
Maths
July 4, 2025, 4:35 p.m.
Answer
Light ray enters from air into water whose refractive index is 1.33 . If speed if light in air is 3*10:8 m/s, find the speed of light in water.
Maths
July 3, 2025, 9:43 p.m.
Answer
Class 10th if the ratios of the sum of the first n terms of two ap's is 7n+1:4n+27 then find the ratio of there 9th terms
The answer of question 2 ii is 22 but writen -22. All calculation is correct but the sign in wrong.