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

Fill in the blank and Explain the completed sentences.

The change in ______ of light rays while going from one medium to another is called refraction.

We can see the sun even when it is little below the horizon because of ______.

What is meant by an artificial satellite?

Write the importance of artificial satellites in your words.

Choose and write the correct option.

If we gradually increase the angle of incidence of a ray of light passing through prism then …..

Phenolphthalein is a synthetic type of indicator.

Choose the correct alternative and rewrite the following sentence.

Phenolphthalein is ___________ type of indicator. 

The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.

When _______________ is passed through fresh lime water, it turns milky.

Explain how the formation of a rainbow occurs.

Answer the following question:
What is the universal indicator? Does Mg (OH)₂ react with sodium hydroxide? If not, why?

Due to _______ pencil looks bent in water, in the given experiment.

Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm.

Light changes its direction when going from one transparent medium to another transparent medium. This is called _______.

The first artificial satellite _______ was sent to space by Soviet Union in 1957.

Identify the wrong figure from the following.

Right or wrong sentence.

The incident rays and refracted rays are on opposite sides of the column.

The speed of light varies in different media.

Write scientific reason.

The sun appears on the western horizon for some time after sunset.

Write scientific reason.

The bottom of a pond appears raised.