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Rajshekhar

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Rajshekhar

Asked: December 18, 2023In: Class 10 Science

Mention any one point of difference between Pepsin and Trypsin.

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Rajshekhar

Asked: December 18, 2023In: Class 10 Science

A student obtained a sharp image of a lighted candle on a screen using a convex lens. Now he wants to focus a distant lamp on a far away electric pole. In which direction should the lens be moved for this purpose with respect to the screen, to get a sharp image on the screen? Justify your answer.

Class 10 CBSE science sample question paper and answer free download 2023-2024

Rajshekhar

Asked: December 18, 2023In: Class 10 Science

(i) Rohit claims to have obtained an image twice the size of object with a concave lens. Is he correct? Give reason for your answer. (ii) Where should an object be placed in case of a convex lens to form an image of same size as of the object? Show with the help of ray diagram the position and the nature of the image formed. (iii) With the help of ray diagram, illustrate the change in position, nature and size of the image formed if the convex lens in case of (ii) is replaced by concave lens of same focal length.

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Rajshekhar

Asked: December 18, 2023In: Class 10 Science

A concave lens has a focal length of 50 cm. Calculate its power.

CBSE Class 10 Science sample question paper 2023-2024

Rajshekhar

Asked: December 15, 2023In: Class 10 Science

In tobacco plant, the male gametes have twenty-four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote?

CBSE Class 10 Science Sample Question Paper for Board Exam 2023-2024

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