Topper's Solved these Questions
Similar Questions
Explore conceptually related problems
BINA LIBRARY-Optics-I-EXERCISE
- Explain why the setting sun looks red?
Text Solution
|
- Why is red light used as a danger signal ?
Text Solution
|
- Explain why yellow head-lights are used in cars in foggy weather.
Text Solution
|
- In order to take colour photograph of a planet, what kind of telescope...
Text Solution
|
- Why should a simple magnifying glass be placed closer to the eye ?
Text Solution
|
- What is the best position for eye viewing an object through microscope...
Text Solution
|
- Define beam of light.
Text Solution
|
- Find the position of an object which when placed in front of a concave...
Text Solution
|
- When an object is placed at a distance of 60 cm from a convex mirror, ...
Text Solution
|
- An object is kept at 0.2 m from a convex lens of focal length 0.15 m. ...
Text Solution
|
- A double convex lens made of glass of refractive index 1.5 has both ra...
Text Solution
|
- Calculate the focal length of the combination of a convex lens of foca...
Text Solution
|
- A converging lens has focal length of 20 cm in air. It is made of a ma...
Text Solution
|
- Two lenses of powers, 15D and +5D are in contact with each other formi...
Text Solution
|
- The refractive index of a prism of angle 60 degree is 1.62 for sodium ...
Text Solution
|
- A ray of light incident on an equilateral glass prism shows minimum de...
Text Solution
|
- A ray of light passes through an equilateral prism such that the angle...
Text Solution
|
- An astronomical telescope of magnifying power 10 consists of two thin ...
Text Solution
|
- A near point of hypermetropic person is 50 cm from the eye. What is th...
Text Solution
|
- An astronomical telescope uses two lenses of powers 10 dioptre and 1 d...
Text Solution
|