SSC (English Medium) १० वीं कक्षा - Maharashtra State Board Question Bank Solutions for Science and Technology 1

What is myopia?

Explain two possible reasons of myopia. How can it be corrected? Explain with a suitable diagram.

Write the name and symbol of the element from the description.

The atom having the smallest size.

Write the name and symbol of the element from the description.

The atom having the smallest atomic mass.

Write the name and symbol of the element from the description.

The noble gas with the smallest atomic radius.

Give scientific reasons for the following:

Atomic radius goes on decreasing while going from left to right in a period.

Write a scientific reason.

Atomic radius goes on increasing down a group.

Study the radius of the element given below and answer the following questions.

a) Which of the above elements have the smallest atom?
b) In which group of the modern periodic table the above element are belongs?
c) What is the periodic trend observed in the variation of atomic radii down a group?

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?

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

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

On moving from left to right in a periodic table, the size of the atom ______.

The size of an atom is indicated by its ______.

_______ is the distance between the nucleus of the atom and its outermost shell.

Atomic radius is expressed in the unit ______.

While going from top to bottom in a group the atomic radius ______.

In Myopia the human eye _______.

Due to elongation of _______ and increase in curvature of the eye lens, a person cannot see distant objects clearly.

At room temperature ethanol is _______.