If the absolute refractive indices of water and glass are 4/3 and 3/2 respectively,then what is the ratio of speed of light in water to that in glass?
Options :
• 2
• 8/9
• 9/8
• 1/2
Answers
Answered by
9
Answer : Option 3 is correct.
Explanation :
• Let the refractive index, speed of light in vaccum and speed of light in a substance be n, c and v, respectively.
• The relation between between refractive index and speed of light in any substance is given by
n = c/v
• So, v = c/n
• Hence, Speed of light in water = 3c/4
and Speed of light in glass = 2c/3.
• Ratio of speed of light in water to glass = (3c/4)/ (2c/3)
= 9/8.
Answered by
1
guys iska answer kya hai ???
Similar questions
Social Sciences,
5 months ago
English,
5 months ago
Science,
5 months ago
Math,
9 months ago
Social Sciences,
1 year ago
Math,
1 year ago