Question

Drive the formula for angle of minimum deviation for a prism​

Answer 1

Answer:

To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and the angle of deviation.

1. The angle of incidence.

2 .The refracting angle of the prism.

3. The material of the prism. (Refractive Index)

4. The colour of the light used i.e., wavelength of light.

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Answer 2

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• ɪɴ ᴍɪɴɪᴍᴜᴍ ᴅᴇᴠɪᴀᴛɪᴏɴ, ᴛʜᴇ ʀᴇꜰʀᴀᴄᴛᴇᴅ ʀᴀʏ ɪɴ ᴛʜᴇ ᴘʀɪꜱᴍ ɪꜱ ᴘᴀʀᴀʟʟᴇʟ ᴛᴏ ɪᴛꜱ ʙᴀꜱᴇ. ɪɴ ᴏᴛʜᴇʀ ᴡᴏʀᴅꜱ, ᴛʜᴇ ʟɪɢʜᴛ ʀᴀʏ ɪꜱ ꜱʏᴍᴍᴇᴛʀɪᴄᴀʟ ᴀʙᴏᴜᴛ ᴛʜᴇ ᴀxɪꜱ ᴏꜰ ꜱʏᴍᴍᴇᴛʀʏ ᴏꜰ ᴛʜᴇ ᴘʀɪꜱᴍ. ᴀʟꜱᴏ, ᴛʜᴇ ᴀɴɢʟᴇꜱ ᴏꜰ ʀᴇꜰʀᴀᴄᴛɪᴏɴꜱ ᴀʀᴇ ᴇQᴜᴀʟ ɪ.ᴇ. ʀ1 = ʀ2. ᴀɴᴅ, ᴛʜᴇ ᴀɴɢʟᴇ ᴏꜰ ɪɴᴄɪᴅᴇɴᴄᴇ ᴀɴᴅ ᴀɴɢʟᴇ ᴏꜰ ᴇᴍᴇʀɢᴇɴᴄᴇ ᴇQᴜᴀʟ ᴇᴀᴄʜ ᴏᴛʜᴇʀ (ɪ = ᴇ).