Tiwari Academy Discussion

Asked: October 30, 2020In: Class 9

A tree breaks due to storm and the broken part bends so that the top of the tree touches the ground making an angle 30° with it. The distance between the foot of the tree to the point where the top touches the ground is 8 m. Find the height of the tree.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:213 Questions No:2

Himmat Rustagi

Asked: October 30, 2020In: Class 10

A contractor plans to install two slides for the children to play in a park. For the children below the age of 5 years, she prefers to have a slide whose top is at a height of 1.5 m, is inclined at an angle of 30° to the ground, whereas for elder children, she wants to have a steep slide at a height of 3m, and inclined at an angle of 60° to the ground. What should be the length of the slide in each case?

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:213 Questions No:3

Himmat Rustagi

Asked: October 30, 2020In: Class 10

The angle of elevation of the top of a tower from a point on the ground, which is 30 m away from the foot of the tower, is 30°. Find the height of the tower.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:4

Himmat Rustagi

Asked: October 30, 2020In: Class 10

A kite is flying at a height of 60 m above the ground. The string attached to the kite is temporarily tied to a point on the ground. The inclination of the string with the ground is 60°. Find the length of the string, assuming that there is no slack in the string.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:5

Himmat Rustagi

Asked: October 30, 2020In: Class 9

A 1.5 m tall boy is standing at some distance from a 30 m tall building. The angle of elevation from his eyes to the top of the building increases from 30° to 60° as he walks towards the building. Find the distance he walked towards the building.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:204 Questions No:6

Amaira

Asked: October 30, 2020In: Class 10

The angles of elevation of the top of a tower from two points at a distance of 4 m and 9 m from the base of the tower and in the same straight line with it are complementary. Prove that the height of the tower is 6 m.

NCERT Solutions for Class 10 Maths Chapter 9 Important NCERT Questions SOME APPLICAT IONS OF TRIGONOMETRY (Height and Distance) NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 9.1 Page No:205 Questions No:16

Aarav goyal

Asked: October 30, 2020In: Class 10

Draw magnetic field lines around a bar magnet.

NCERT Solution for Class 10 Science Chapter 13 Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-228 Questions No-1

Aarav goyal

Asked: October 30, 2020In: Class 10

List the properties of magnetic field lines.

NCERT Solution for Class 10 Science Chapter 13 Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-228 Questions No-2

Aarav goyal

Asked: October 30, 2020In: Class 10

Why don’t two magnetic field lines intersect each other?

NCERT Solution for Class 10 Science Chapter 13 Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-228 Questions No-3

Mayra Sharma

Asked: October 30, 2020In: Class 10

An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain.

NCERT Solution for Class 10 Science Chapter 13 Magnetic Effects of Electric Current NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-238 Questions No-2

A tree breaks due to storm and the broken part bends so that the top of the tree touches the ground making an angle 30° with it. The distance between the foot of the tree to the point where the top touches the ground is 8 m. Find the height of the tree.

The angle of elevation of the top of a tower from a point on the ground, which is 30 m away from the foot of the tower, is 30°. Find the height of the tower.

A kite is flying at a height of 60 m above the ground. The string attached to the kite is temporarily tied to a point on the ground. The inclination of the string with the ground is 60°. Find the length of the string, assuming that there is no slack in the string.

A 1.5 m tall boy is standing at some distance from a 30 m tall building. The angle of elevation from his eyes to the top of the building increases from 30° to 60° as he walks towards the building. Find the distance he walked towards the building.

The angles of elevation of the top of a tower from two points at a distance of 4 m and 9 m from the base of the tower and in the same straight line with it are complementary. Prove that the height of the tower is 6 m.

Draw magnetic field lines around a bar magnet.

List the properties of magnetic field lines.

Why don’t two magnetic field lines intersect each other?

An electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain.

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