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Kiara Singh

Asked: December 22, 2023In: Class 10 Science

It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm. (i) What should be the range of the object distance in the above case? (ii) Will the image be smaller or larger than the object? Draw a ray diagram to show the formation of image in this case. (iii) Where will the image of this object be, if it is placed 24 cm in front of the mirror?

sample question paper for class 10 CBSE science with solutions 2023-2024

Prasant

Asked: December 22, 2023In: Class 10 Science

Explain the processes of aerobic respiration in mitochondria of a cell and anaerobic respiration in yeast and muscle with the help of word equations.

CBSE Science Class 10 Sample Question Paper 2023-2024 free download with answers

Prasant

Asked: December 22, 2023In: Class 10 Science

Create a terrestrial food chain depicting four trophic levels. Why do we not find food chains of more than four trophic levels in nature?

CBSE class 10 science sample question paper 2023-2024

Sandeep Jha

Asked: December 21, 2023In: Class 10 Science

In the experimental set up on “Carbon dioxide (CO2) is released during respiration”, if one forgets to keep the vial with Potassium hydroxide (KOH) in the conical flask, how will the result vary? Give details

CBSE Class 10 Science Pre Board Sample Question Paper 2023-24

Rajshree Chatterjee

Asked: December 21, 2023In: Class 10 Science

A student always sitting at the back of the bench rows in a class, who has difficulty in reading. What could name of his defect of vision? Could you draw ray diagrams to illustrate the image formation of his eyes, when he is seated at the (i) back seat and also (ii) front seat. Could you state two possible reasons of his defect of vision. Could you explain the method of correcting this defect with the help of a ray diagram, if possible.

CBSE Class 10 Science Sample Question Paper 2023-2024

Rajshree Chatterjee

Asked: December 21, 2023In: Class 10 Science

When we observed under high power of the microscope, ‘chain of buds’ is visible in the microscopic view. (i) In which organism can it be observed? (ii) Explain the process.

CBSE Class 10 Science Sample Question Paper 2023-2024

Rajshree Chatterjee

Asked: December 21, 2023In: Class 10 Science

What is meant by the term ‘power of accommodation’? Name the component of eye that is responsible for the power of accommodation.

NCERT, CBSE Class 10 Science Sample Question Paper new 2023-2024 with Solutions

Kiara Singh

Asked: December 21, 2023In: Class 10 Science

Why do more and more people prefer to use condoms? What is the principle behind use of condoms?

NCERT, CBSE Class 10 Science Sample Question Paper new 2023-2024 with Solutions

Prasant

Asked: December 21, 2023In: Class 10 Science

i) What is meant by power of a lens? (ii) You have three lenses L1, L2 and L3 of powers +10D, +5D and -10D respectively. State the nature and focal length of each lens. (iii) Explain which of the three lenses will form a virtual and magnified image of an object placed at 15 cm from the lens. (iv) Draw the ray diagram in support of your answer.

CBSE Class 10 Science Sample Question Paper new 2023-2024 with Solutions

Prasant

Asked: December 21, 2023In: Class 10 Science

Two lamps, one rated 100 W at 220 V and the other 200 W at 220V are connected (i) in series and (ii) in parallel to electric main supply of 220V. Find the current drawn in each case.

Rationalised syllabus CBSE Class 10 Science Sample Question Paper 2023-2024

1 2 3 4

Explain the processes of aerobic respiration in mitochondria of a cell and anaerobic respiration in yeast and muscle with the help of word equations.

In the experimental set up on “Carbon dioxide (CO2) is released during respiration”, if one forgets to keep the vial with Potassium hydroxide (KOH) in the conical flask, how will the result vary? Give details

When we observed under high power of the microscope, ‘chain of buds’ is visible in the microscopic view. (i) In which organism can it be observed? (ii) Explain the process.

What is meant by the term ‘power of accommodation’? Name the component of eye that is responsible for the power of accommodation.

Why do more and more people prefer to use condoms? What is the principle behind use of condoms?

Two lamps, one rated 100 W at 220 V and the other 200 W at 220V are connected (i) in series and (ii) in parallel to electric main supply of 220V. Find the current drawn in each case.

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