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

Find the amount of heat needed to raise the temperature of a silver container of mass 100 g by 10 °C. (c = 0.056 cal/g °C)

If water of mass 60 g and temperature 60 ˚C is mixed with water of mass 60 g and temperature 40 ˚C, what will be the maximum temperature of the mixture?

Find the amount of heat needed to raise the temperature of a piece of iron of mass 500 g by 20 °C. (c = 0.110 cal/g.°C)

Write the molecular formulae of the following compound.

Copper pyrite

Write the molecular formulae of the following compound.

Stannic oxide

Write the molecular formulae of the following compound.

Ferrous tungstate

Draw a neat and labelled diagram for Froth Floatation Process.

Distinguish between:

Froth floatation - Leaching

Write a short note.

Homologous series

Explain concept with example/explain with the help of a balanced equation.

Gangue

Explain concept with example/explain with the help of a balanced equation.

Minerals

Complete flow chart given below.

State Newton’s universal law of gravitation. Express it with the mathematical form of force of gravitation?

When does overloading occur?

What does overloading cause?

How can overloading be avoided?

Explain the application of heating effect of electric current in an electric bulb with a diagram.

If each two concave lenses of focal length 30 cm are kept in contact with each other what will be the power of combination?

An object is placed at a distance of 10 cm from a convex lens of focal length 12 cm, find out at what distance image will be formed from the lens and what is the nature of image.

5 cm high object is placed at a distance of 10 cm from a converging lens of focal length of 20 cm. Determine the position, size and type of the image.