Question

why inciedent angle bends when it enters in glass prism
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Answer 1

Answer:

A beam of light bends when it enters glass at an angle. This is due to refraction of light. It does not bend if it enters the glass at right angles because no refraction will occur in this case, the angle of incidence in this case is zero and angle of refraction is also zero.

Answer 2

Answer:

ᴀ ʙᴇᴀᴍ ᴏғ ʟɪɢʜᴛ ʙᴇɴᴅs ᴡʜᴇɴ ɪᴛ ᴇɴᴛᴇʀs ɢʟᴀss ᴀᴛ ᴀɴ ᴀɴɢʟᴇ. ᴛʜɪs ɪs ᴅᴜᴇ ᴛᴏ ʀᴇғʀᴀᴄᴛɪᴏɴ ᴏғ ʟɪɢʜᴛ. ɪᴛ ᴅᴏᴇs ɴᴏᴛ ʙᴇɴᴅ ɪғ ɪᴛ ᴇɴᴛᴇʀs ᴛʜᴇ ɢʟᴀss ᴀᴛ ʀɪɢʜᴛ ᴀɴɢʟᴇs ʙᴇᴄᴀᴜsᴇ ɴᴏ ʀᴇғʀᴀᴄᴛɪᴏɴ ᴡɪʟʟ ᴏᴄᴄᴜʀ ɪɴ ᴛʜɪs ᴄᴀsᴇ, ᴛʜᴇ ᴀɴɢʟᴇ ᴏғ ɪɴᴄɪᴅᴇɴᴄᴇ ɪɴ ᴛʜɪs ᴄᴀsᴇ ɪs ᴢᴇʀᴏ ᴀɴᴅ ᴀɴɢʟᴇ ᴏғ ʀᴇғʀᴀᴄᴛɪᴏɴ ɪs ᴀʟsᴏ ᴢᴇʀᴏ.