Popular Questions
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- SAT Math - Number & Operations - Fractions
- Which one of the following material cannot be used to make a lens
- The image formed by a concave mirror is observed to be virtual
- Whare should an object be placed in front of a convex lens
- A spherical mirror and a thin spherical lens
- No matter how far you stand from a mirror
- Which of the following lenses would you prefer to
- We wish to obtain an erect image of an object
- Name the type of mirror used in following situations
- One-half of a convex lens is covered with a black paper
- An object 5cm in length is placed 25cm away
- A concave lens of focal length 15cm forms an image 10cm from the lens
- An object is placed at a distance of 10m from a convex mirror
- The magnification produced by a plane mirror is +1. What does it mean?
- An object 5cm in length is placed at a distance of 20cm in front of convex mirror
- An object of size 7cm is placed at 27cm in front of a concave mirror
- Find the focal length of a lens of power
- A doctor has prscribed corrective lens of power +1.5 D.
- Define principal focus of a concave mirror
- Name a mirror that can give an erect and enlarged image of an object.
- The radius of curvature of spherical mirror is 20cm. What is its focal length?
- Why do we prefer a convex mirror as rear view mirror in vehicles?
- Find the focal length of a convex mirror whose radius of curvature is 32cm.
- A concave mirror produces three times magnified (enlarged) real image of
- A ray of light travelling in air enters obliquely into water.
- Light enters from air to glass having refractive index 1.50.
- Find out from table given below, the medium having highest optical density.
- You are given kerosene, turpentine and water.
- The refractive index of diamond is 2.42.
- Define 1 D of power of lens.
- A convex lens forms a real and inverted image of a needle at a distance of 50cm from it
- find the power of concave lens of focal length 2m.
- Focal length of a plane mirror is
- An object is placed at a distance of 10cm in front of a plane mirror, then the distance of image from mirror will be
- The image of an object placed in front of a convex mirror is formed at
- The radius of curvature of concave mirror is 12cm. Then, the focal length will be
- An object is placed 20cm from the concave mirror of focal length 10cm, then image is formed at
