Recently Replied Questions

• Two mirrors at an angle θº produce 5 images of a point. The number of images produced when θ is decreased to θº – 30º is (A) 9 (B) 10 (C) 11 (
  Two mirrors at an angle θº produce 5 images of a point. The number of images produced when θ is decreased to θº – 30º is (A) 9 (B) 10 (C) 11 (D) 12 ...
  0·3· #Physics#Optics
  replied2012-01-02 05:31:17
• Reflection of light-basics
  A pole of height 4m is kept in front of a vertical plane mirror of length 2 m . The lower end of the mirror is at a height of 6m from the ground. The horizontal distance between the mirror and the pole is 2 m . Upto what mini ...
  0·1· #Physics#Optics
  replied2011-12-08 06:38:32
• Ray optics
  Q.1. A man uses a concave mirror for shaving.He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged.Find the focal length of the mirror. Q.2.Find the diameter of the image of th ...
  0·7· #Physics#Optics
  replied2011-12-08 06:19:41
• Ray optics
  Q.1. A man uses a concave mirror for shaving.He keeps his face at a distance of 25 cm from the mirror and gets an image which is 1.4 times enlarged.Find the focal length of the mirror. Q.2.Find the diameter of the image of th ...
  0·7· #Physics#Optics
  replied2011-12-08 05:57:37