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

Draw the diagram of refraction of light in the glass slab

The height of the image formed by an object of height 10 cm placed in front of a plane mirror is __________.

(a) 5 cm
(b) 10 cm
(c) 15 cm
(d) 20 cm

Lime water turns milky when ______ gas is passed through it.

Observe the following figure and answer the questions given under it:

1) How many times does refraction take place in the above figure?

2) What happens to the ray of light when it passes from air to glass?

3) What happens to the ray of light when it passes from glass to air?

4) What are the rays AB and CD in the figure called?

5) Define refraction.

Find the expression for the resistivity of a material and state the SI unit of resistivity.

Observe the following figure:

If the current in the coil A is changed, will some current be induced in the coil B? Explain.

An object is placed at a distance of 100 cm from a converging lens of focal length 40 cm.
(i) What is the nature of image?
(ii) What is the position of image?

Explain the terms with examples.

Displacement reaction

Which of the statement given below correctly describes the magnetic field near a long, straight current carrying conductor?

Compare the magnetic field produced by a solenoid with the magnetic field of a bar magnet. Draw neat figures and name various components.

Name the following diagram and explain the concept behind it.

Write chemical equation for the event.
Aluminium came in contact with air.

Write chemical equation for the event.

Iron filings are dropped in aqueous solution of copper sulphate.

Write the chemical equation for the event.

A reaction was brought about between ferric oxide and aluminium.

Write chemical equation for the event.

Electrolysis of alumina is done.

Write a chemical equation for the following event.

Zinc oxide is dissolved in dilute hydrochloric acid.

Divide the metals Cu, Zn, Ca, Mg, Fe, Na, Li into three groups, namely reactive metals, moderately reactive metals and less reactive metals.

Observe the figure and write accurate conclusion regarding refraction of light.

What is the correct reason for blinking / flickering of stars? Explain it.
a) The blasts in the stars.
b) Absorption of star light by the atmosphere.
c) Motion of the stars.
d) Changing refractive index of gases in the atmosphere.

What are space expeditions? Explain their need and importance in your words.