SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Important Questions for Science and Technology 1

If focal length of a convex lens is 20 cm at what is the power of the lens?

Observe the figure whether it is correct or not and explain the phenomenon.

The power of convex lens of focal length 20 cm is ______.

Observe the figure and answer the following questions: 

1. Name the defect of vision represented in the above figure.
2. State the reasons for this defect.
3. How is it corrected?
4. Draw the diagram to show the correction of this defect.

In simple microscope ______ lens is used.

Complete the following table by observing the given figures:

Figure →
Points ↓
(a) Name of the defect	______	______
(b) Position of the image	______	______
(c) Lens used to correct the defect	______	______

When a ray of light travels from air to glass slab and strikes the surface of separation at 90°, then it …………….
(a) bends towards normal
(b) bends away from normal
(c) passes unbent
(d) passes in zigzag way

When a ray of light travels from air to glass slab and strikes the surface of separation at 90°, then it …………….
(a) bends towards normal
(b) bends away from normal
(c) passes unbent
(d) passes in zigzag way

Explain how spectrum is formed.

Explain how spectrum is formed.

When rays of light are incident on a glass slab then the incident ray and emergent ray are _________ each other.

1. perpendicular
2. parallel
3. opposite
4. concurrent

When rays of light are incident on a glass slab then the incident ray and emergent ray are _________ each other.

1. perpendicular
2. parallel
3. opposite
4. concurrent

What is a spectrum?

What is a spectrum?

Write a short note on dispersion of light.

Write a short note on dispersion of light.

Define refraction and state the laws of refraction.

Define refraction and state the laws of refraction.