Recent questions in Science Part 1

0 votes

1 answer 348 views

Explain the term Minerals

asked Oct 9, 2021 in Chapter 8: Metallurgy by Doubtly (98.9k points)

0 votes

1 answer 342 views

Explain the term Ores

asked Oct 9, 2021 in Chapter 8: Metallurgy by Doubtly (98.9k points)

0 votes

1 answer 444 views

Metallurgy Explain the terms.

asked Oct 9, 2021 in Chapter 8: Metallurgy by Doubtly (98.9k points)

0 votes

1 answer 398 views

Identify the pairs of metals and their ores from the following.

asked Oct 9, 2021 in Chapter 8: Metallurgy by Doubtly (98.9k points)

0 votes

1 answer 318 views

Make pairs of substances and their properties Substance. Property A. Potassium bromide. 1.Combustible

asked Oct 9, 2021 in Chapter 8: Metallurgy by Doubtly (98.9k points)

0 votes

1 answer 540 views

Write names. a. Alloy of sodium with mercury. b. Molecular formula of the common ore of aluminum.

asked Oct 9, 2021 in Chapter 8: Metallurgy by Doubtly (98.9k points)

0 votes

0 answers 317 views

An object kept 60 cm from a lens gives a virtual image 20 cm in front of the lens.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

0 answers 242 views

Three lenses having power 2, 2.5 and 1.7 D are kept touching in a row. What is the total power of the lens combination?

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

0 answers 535 views

5 cm high object is placed at a distance of 25 cm from a converging lens of focal length of 10 cm.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 720 views

Doctor has prescribed a lens having power +1.5 D. What will be the focal length of the lens? What is the type of the lens and what must be the defect of vision?

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 429 views

What is the function of iris and the muscles connected to the lens in human eye?

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 357 views

Distinguish between b. Concave lens and Convex Lens

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 443 views

Distinguish between: a. Farsightedness and Nearsightedness

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 655 views

Explain the working of an astronomical telescope using refraction of light.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 978 views

We can not clearly see an object kept at a distance less than 25 cm from the eye.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 413 views

One can sense colours only in bright light.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 862 views

Simple microscope is used for watch repairs.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 725 views

At which position will you keep an object in front of a convex lens so as to get a real image of the same size as the object ? Draw a figure.

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 613 views

Draw a figure explaining various terms related to a lens

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

0 votes

1 answer 448 views

Q1} Match the columns in the following table and explain them

asked Oct 9, 2021 in Chapter 7: Lenses by Doubtly (98.9k points)

Recent questions in Science Part 1

Recent Badges

Most popular tags