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

The image obtained while finding the focal length of convex lens is ....................

Observe the following figure and answer the questions.

a) Which optical instrument shows arrangement of lenses as shown in the figure?
b) Write in brief the working of this optical instrument.
c) How can we get different magnifications in this optical instrument?
d) Draw the figure again and labelled it properly

Yesh find out F₁ and F₂ of symmetric convex lens experimentally then which conclusion is true.

At which position will you keep an object in front of convex lens to get a real image smaller than the object? Draw a figure.

Observer the following diagram and answer the questions.
a) Which eye defect is shown in this diagram?
b) What are the possible reasons for this eye defect?
c) How this defect is corrected, write it in brief?

Observe the following figure and complete the table:

Surabhi from std. X uses spectacle. The power of the lenses in her spectacle is 0.5 D.

Answer the following questions from the given information:

1. Identify the type of lenses used in her spectacle.
2. Identify the defect of vision Surabhi is suffering from.
3. Find the focal length of the lenses used in her spectacle.

Rewrite the following table so as to match second and third column with first column.

Choose the correct alternative and rewrite the following:

Mirror used by a dental surgeon is ..........................

A _____________ mirror is used by a dentist.

In which equipment/s do you find ___________________

My grandfather uses a bifocal lens in his spectacle. Explain why.

If an object is placed in front of a convex lens beyond 2F1, then what will be the position, relative size, and nature of an image which is formed? Explain with a ray diagram.

Answer the following question:
Distinguish between the convex mirror and the concave mirror.

Anuja cannot see the blackboard writing but she can see nearby things.
(a) What is the eye defect she is suffering from?
(b) State the possible reason for her defect.
(c) How is it corrected

In Myopia the human eye _______.

Write scientific reason.

Nearsightedness, this defect can be corrected by using spectacles with concave lens.