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

Name any two appliances which works on the phenomenon of heating effect of electric current.

Explain the importance/uses of fuse wire.

Distinguish between:

s-block - p-block

Distinguish between:

Group 17 - Group 18

Write a short note.

Regelation

An X element with atomic number 11 and Y element with atomic number 13 belongs to the third period in the modern periodic table. With this information, give the answers of the below questions.

1. Which element has more metallic character from these two elements?
2. What is the valency of each X and Y elements?
3. Atom size of Y element is smaller than atom size of X element. Explain.

Position of A, B and C three elements is given in the table from the modern periodic table. Answer the following questions.

1. What is A element metal or nonmetal?
2. Which is the outermost orbit of element B?
3. Identify C element and it's physical state.

When does overloading occur?

What does overloading cause?

How can overloading be avoided?

What is the use of earthing wire?

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

Explain structure of modern periodic table in short.

______ is not a chemical change.

If 220 V potential difference is applied across an electric bulb, a current of 0.45 A flows in the bulb. What must be the power of the bulb?

Tara, after completing her exams, went to her grandmother's house along with her younger brother Rahul. One day, Rahul came home after playing and switched on the fan and air conditioner. At the same time, his grandmother was preparing a milkshake for him using a mixer. Suddenly, they heard a big sound and the electricity of the house got shut down. Tara is called an electrician. He said the main reason for supply to shut down was overloading.

1. What is overloading?
2. Is overloading and short the same? When does short-circuiting take place?
3. How can the effects of overloading be avoided?

Find the odd one out.

Complete the following table based on image formation by convex lens:

1 kWh is equal to ______.

Non-metal that is a good conductor of electricity: