Reflection of Light by Other Media

Q.

When an illuminated object is held in front of a thick plane glass mirror, several images are seen, out of which the second image is brightest. Give reason.

Q. For a ray, incident at an angle of ${45}^{\circ }$ on a plane mirror the deviation produced in its path will be

1. ${45}^{\circ }$
2. ${90}^{\circ }$
3. ${120}^{\circ }$
4. ${150}^{\circ }$

Q. A ray of light is incident on a plane mirror as shown in the given figure. Calculate the deviation produced in the ray.

1. 120 degrees
2. 140 degrees
3. 150 degrees
4. 180 degrees

Q.

What is the difference between normal reflection and total internal reflection

Q.

Multiple images are formed by a thick plane mirror.Which of the following is the brightest of all the images?

1. First

2. Second

3. third

4. fourth

Q.

Why illusion are happening in our eyes

Q.

The phenomenon of light hitting a surface and then bouncing off is termed as ___

1. Refraction

2. Reflection

3. None of these

4. Diffusion

Q.

(a) A wall reflects light and a mirror also reflects light. What difference is there in the way they reflect light ? (b) Which type of reflection of light leads to the formation of images ?

Q. Which of the following can a ray of light undergo?

1. Reflection
2. Absorption
3. Refraction
4. All of these

Q.

When an object is held in front of a thick plane glass mirror, what are the number of images obtained? Which image is the brightest one? Explain.

Q.

Which of the following options can a ray of light undergo?

1. Reflection

2. Absorption

3. Refraction

4. All of these

Q. Find the right sequence of things that happen in the process of seeing an object.

1. Brain
2. Object
3. Eyes
4. Reflection
5. Light source

Q. Which of the following options can a ray of light undergo?

1. Reflection
2. Refraction
3. Absorption
4. All of these

Q. Find the right sequence of things that happen in the process of seeing an object.

1. Brain
2. Object
3. Eyes
4. Reflection
5. Light source

Q. Which lens should be used to burn a piece of paper?

1. Biconcave lens
2. Glass slab
3. Plano-concave lens
4. Biconvex lens

Q. When light strikes the surface of a non-metallic material, it bounces off in all directions. This is known as:

1. Refraction
2. Diffused reflection
3. Regular reflection
4. Reflection

Q. If a number of images of a candle flame are seen in a thick mirror, then

1. the first image is the brightest
2. the second image is the brightest
3. the images are equally bright
4. the last image is the brightest

Q. Which lens should be used to burn a piece of paper?

1. Glass slab
2. Plano-concave lens
3. Biconcave lens
4. Biconvex lens

Q. Incident light falling on the surface is sent back into the same medium is an example of _______________.

1. reflection
2. rarefraction
3. polarization
4. absorption

Q. Find the right sequence of things that happen in the process of seeing an object.

1. Brain
2. Object
3. Eyes
4. Reflection
5. Light source

Q. Non-luminous objects are visble due to ______ of light.

1. refraction
2. transmission
3. reflection
4. dispersion

Q. Reflection from a rouch surface is called _____ reflection.

1. planar
2. diffused
3. regular
4. linear

Q. Which lens should be used to burn a piece of paper?

1. Biconvex lens
2. Glass slab
3. Biconcave lens
4. Plano-concave lens