defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Optics Mirrors and Images

The focal length of a concave mirror is 50 cm in air. When this mirror is kept in water its focal length will:

1
increase
2
decrease
3
remain same
4
may increase or decrease
Share: WhatsApp Telegram X

Sponsored

hivanix.in

Visit

This quiz is brought to you by hivanix.in

🌐 Web App Development

Other Tools: chatwiz.hivanix.in mmspace.hivanix.in unogame.hivanix.in

Quick Navigation

Home

Subjects

Chapters