Q.11
Explain it also in brief

Q.11 Explain it also in brief by inner surface or a spoon. when it is placed very it 8. watt = 9. Two plane mirrors are inclined at an angle number of images formed are Directions for questiOons 10 to 19 For each Of the questions, four choices have been rovided. Select the correct alternative. 10. Which of the following is opaque? (a) Water (c) Mirror (b) Glass (d) Prism II. When the Earth comes into the umbra ana penum- is formed. bra of the Moon (a) lunar eclipse (b) solar eclipse (c) partial lunar eclipse (d) None of the above. .2. A light ray is incident on a plane mirror placed horizontal plane, making an angle of with vertical, then the angle between the reflected ray the is (b) 600 (a) 350 (d) 300 (c) 900 3. The direction oflight can be changed by (a) a plane mirror a piece of paper