Question

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ʟɪɢʜᴛ ᴇɴᴛᴇʀs ғʀᴏᴍ ᴀɪʀ ᴛᴏ ɢʟᴀss ʜᴀᴠɪɴɢ ʀᴇғʀᴀᴄᴛɪᴠᴇ ɪɴᴅᴇx 1.5. ᴡʜᴀᴛ ɪs ᴛʜᴇ sᴘᴇᴇᴅ ᴏғ ᴛʜᴇ ʟɪɢʜᴛ ɪɴ ᴛʜᴇ ɢʟᴀss? (sᴘᴇᴇᴅ ᴏғ ʟɪɢʜᴛ ɪɴ ᴠᴀᴄᴜᴜᴍ ɪs 3× 10^8 ᴍs -1 )​

Answer 1

Answer:

Speed of light in glass is 2×10^8

Explanation:

speed of light in air VA= 3×10^8 m/s

speed of light in glass VG =?

Refractive index of glass with respective to air = 1.5

gNa = VA / VG

1.5 = 3×10^8 / VG

VG= 3×10^8 ÷ 1.5

VG = 30×10^8 ÷ 15

VG = 2×10^8

Answer 2

Explanation:

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