Yadavi Yadav

Poll

Eshan hilal

Asked: October 20, 2020In: Class 10

Name a part of the female reproductive system in human beings?

NCERT Solution for Class 10 Science Chapter 8 How do Organisms Reproduce? NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-141 Questions No-2

Eshan hilal

Asked: October 20, 2020In: Class 10

Draw a labelled diagram of the longitudinal section of a flower.

NCERT Solution for Class 10 Science Chapter 8 How do Organisms Reproduce? NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-141 Questions No-7

Divit malik

Asked: October 20, 2020In: Class 10

A convex lens forms a real and inverted image of a needle at a distance of 50 cm from it. Where is the needle placed in front of the convex lens if the image is equal to the size of the object? Also, find the power of the lens.

NCERT Solution for Class 10 Science Chapter 10 Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-184 Questions No-2

Lara Mukherjee

Asked: October 20, 2020In: Class 10

Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

NCERT Solution for Class 10 Science Chapter 11 The Human Eye and the Colorful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-198 Questions No-7

Dev Kumar

Asked: October 20, 2020In: Class 10

A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10–8 W m. What will be the length of this wire to make its resistance 10 W? How much does the resistance change if the diameter is doubled?

NCERT Solution for Class 10 Science Chapter 12 Electricity NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-221 Questions No-6

Ekan khan

Asked: October 19, 2020In: Class 10

Write the electron-dot structures for sodium, oxygen and magnesium.

NCERT Solution for Class Tenth Science Chapter 3 Metals and Non-metals CBSE NCERT Book Session-2022-2023 Intext Questions Page No-49 Questions No-1 (i) Write the electron-dot structures for sodium, oxygen and magnesium. (ii) Show the formation of Na2O and MgO by the ...

Eniya kapoor

Asked: October 19, 2020In: Class 10

State two ways to prevent the rusting of iron.

NCERT Solution for Class Tenth Science Chapter 3 Metals and Non-metals CBSE NCERT Book Session-2022-2023 Exercises Questions Page No-21 Questions No-10

Poll

Eniya kapoor

Asked: October 19, 2020In: Class 10

Give reasons

NCERT Solution for Class Tenth Science Chapter 3 Metals and Non-metals CBSE NCERT Book Session-2022-2023 Exercises Questions Page No-21 Questions No- 12

Daksh arya

Asked: October 19, 2020In: Class 10

What would be the electron dot structure of carbon dioxide which has the formula CO2?

NCERT Solution for Class Tenth Science Chapter 4 Carbon and its Compounds CBSE NCERT Book Session-2022-2023 Intext Questions Page No-4 Questions No-1

Daksh arya

Asked: October 19, 2020In: Class 10

What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – The eight atoms of sulphur are joined together in the form of a ring.)

NCERT Solution for Class Tenth Science Chapter 4 Carbon and its Compounds CBSE NCERT Book Session-2022-2023 Intext Questions Page No-4 Questions No-2

Yadavi Yadav

Name a part of the female reproductive system in human beings?

Draw a labelled diagram of the longitudinal section of a flower.

A convex lens forms a real and inverted image of a needle at a distance of 50 cm from it. Where is the needle placed in front of the convex lens if the image is equal to the size of the object? Also, find the power of the lens.

Make a diagram to show how hypermetropia is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10–8 W m. What will be the length of this wire to make its resistance 10 W? How much does the resistance change if the diameter is doubled?

Write the electron-dot structures for sodium, oxygen and magnesium.

State two ways to prevent the rusting of iron.

Give reasons

What would be the electron dot structure of carbon dioxide which has the formula CO2?

What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – The eight atoms of sulphur are joined together in the form of a ring.)

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