Class 10 Science

Physics Sir

Asked: December 30, 2020In: Class 10 Science

Show how would you join three resistors, each of resistance Ω9 so that the equivalent resistance of the combination is (i) 13.5 Ω, (ii) 6 Ω?

NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 7

Poll

Aadit

Asked: December 30, 2020In: Class 10 Science

Assertion (A): As the speed of the coil in the motor increases, there is reduction in the current flowing through it. Reason (R): During rotation in electric motor, some induced current is produced.

NCERT Solutions for Class 10 Science Chapter 13 Important Board Questions Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Very Short Questions: Questions No: 21

Physics Sir

Asked: December 30, 2020In: Class 10 Science

State ohm’s law. Derive relation between I, V and R. Draw the graph between V and I.

NCERT Solutions for Class 10 Science Chapter 12 Important Board Questions Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 2

Physics Question

Asked: December 30, 2020In: Class 10 Science

Write the importance of ciliary muscles in the human eye. Name the defect of vision that arises due to gradual weakening of the ciliary muscles. What types of lenses are required by the person suffering from this defect to see the objects clearly.

NCERT Solutions for Class 10 Science Chapter 11 Important Board Questions Human Eye and Colourful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions Questions No: 7

Amrita

Asked: December 30, 2020In: Class 10 Science

Define magnetic field lines.

NCERT Solutions for Class 10 Science Chapter 13 Important Board Questions Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Very Short Questions: Questions No: 1

Physics Question

Asked: December 30, 2020In: Class 10 Science

What is “dispersion of white light”? Draw a labelled diagram to illustrate the recombination of the spectrum of white light. Why it is essential that the two prisms used for the purpose should be identical and placed in an inverted position with respect to each other?

NCERT Solutions for Class 10 Science Chapter 11 Important Board Questions Human Eye and Colourful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions Questions No: 5

Learn Physics

Asked: December 30, 2020In: Class 10 Science

A thin converging lens forms a (i) Real magnified image. (ii) Virtual magnified image. (a) Write the positions of the objects in each case. (b) Draw labelled diagrams for each case.

NCERT Solutions for Class 10 Science Chapter 10 Important Board Questions Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board 5 Marker Questions Questions No: 2

Poll

Aadit

Asked: December 30, 2020In: Class 10 Science

Assertion (A): Magnetic field lines never intersect each other. Reason (R): There must not be two north directions at a point.

NCERT Solutions for Class 10 Science Chapter 13 Important Board Questions Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Very Short Questions: Questions No: 20

Learn Physics

Asked: December 30, 2020In: Class 10 Science

The refractive indices of glass and water with respect to air are 3/2 and 4/3 respectively. If speed of light in glass is 2 × 108 m/s, find the speed of light in water.

NCERT Solutions for Class 10 Science Chapter 10 Important Board Questions Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board 3 Marker Questions Questions No: 12

Biology Sir

Asked: December 30, 2020In: Class 10 Science

Write a short note on( a) gene flow (b) Natural selection.

NCERT Solutions for Class 10 Science Chapter 9 Important Board Questions Heredity and Evolution NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions: Questions No: 6

Category: Class 10 Science

Show how would you join three resistors, each of resistance Ω9 so that the equivalent resistance of the combination is (i) 13.5 Ω, (ii) 6 Ω?

Assertion (A): As the speed of the coil in the motor increases, there is reduction in the current flowing through it. Reason (R): During rotation in electric motor, some induced current is produced.

State ohm’s law. Derive relation between I, V and R. Draw the graph between V and I.

Write the importance of ciliary muscles in the human eye. Name the defect of vision that arises due to gradual weakening of the ciliary muscles. What types of lenses are required by the person suffering from this defect to see the objects clearly.

Define magnetic field lines.

What is “dispersion of white light”? Draw a labelled diagram to illustrate the recombination of the spectrum of white light. Why it is essential that the two prisms used for the purpose should be identical and placed in an inverted position with respect to each other?

A thin converging lens forms a (i) Real magnified image. (ii) Virtual magnified image. (a) Write the positions of the objects in each case. (b) Draw labelled diagrams for each case.

Assertion (A): Magnetic field lines never intersect each other. Reason (R): There must not be two north directions at a point.

The refractive indices of glass and water with respect to air are 3/2 and 4/3 respectively. If speed of light in glass is 2 × 108 m/s, find the speed of light in water.

Write a short note on( a) gene flow (b) Natural selection.

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