P-2 Life Processes in Living Organisms Part – 2 — Science STD 10 — Question

What is the sign of the power of the lens used to correct hypermetropia?

Give two examples of alloy.

A ray of light is going towards the focus of a concave lens. Draw a ray diagram to show the path of this ray of light after refraction through the lens.

What is meant by specific heat capacity?
How will you prove experimentally that different substances have different specific heat capacities?

Name the following:
Organisms that cannot prepare their own food.

How do you think the brightness of two lamps arranged in parallel compares with the brightness of two lamps arranged in series (both arrangements having one cell)?

Arrange the following elements in increasing order of their atomic radii:
Li, Be, F, N.

Which of the following fuse ratings would be suitable for this electric iron?
1A, 3A, 5A, 13A.

What is the SI unit of (i) electric energy, and(ii) electric power?

complete the statements by choosing correct options from bracket.
(Genes, Mutation, Translocation, Transcription, Gradual development, Appendix)
Evolution means ………….