Tiwari Academy Discussion

Asked: December 28, 2020In: Class 10 Science

Draw a neat labelled ray diagram of the experimental set-up for observing the scattering of light in a colloidal solution of sulphur to show how the sky appears blue and the sun appears red at sunrise and sunset.

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 Long Short Questions Questions No: 2

Naksh Singh

Asked: December 28, 2020In: Class 10 Maths

Find the sum of the first 15 multiples of 8.

NCERT Solutions for Class 10 Maths Chapter 5 Important NCERT Questions Arithmetic Progression NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.3 Page No:113 Questions No:13

Atiksh Singh

Asked: December 28, 2020In: Class 10 Maths

Solve the pair of linear equations by the elimination method and the substitution method: 3x + 4y = 10 and 2x – 2y = 2

NCERT Solutions for Class 10 Maths Chapter 3 Important NCERT Questions Pair Of Linear Equation In Two Variables NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 3.4 Page No:56 Questions No:1 Part:2

Rishit Kumar

Asked: December 28, 2020In: Class 10 Maths

Which of the following pairs of linear equations has unique solution, no solution, or infinitely many solutions. In case there is a unique solution, find it by using cross multiplication method. 3x – 5y = 20 and 6x – 10y = 40

NCERT Solutions for Class 10 Maths Chapter 3 Important NCERT Questions Pair Of Linear Equation In Two Variables NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 3.5 Page No:62 Questions No:1 Part:3

Learn Physics

Asked: December 28, 2020In: Class 10 Science

One half of a convex lens is covered with black paper. (a) Show the formation of image of an object placed at 2f, of such covered lens with the help of ray diagram. Mention the positions and nature of the image (b) Draw the ray diagram for same object at same position in front of the same lens, but now uncovered. Will there be any difference in image obtained in the two cases? Give reasons for your answers.

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: 1

Laksh

Asked: December 28, 2020In: Class 10 Maths

Find the sum of the following APs: 2, 7, 12, . . ., to 10 terms.

NCERT Solutions for Class 10 Maths Chapter 5 Important NCERT Questions Arithmetic Progression NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.3 Page No:107 Questions No:1

Ishank khan

Asked: December 28, 2020In: Class 10 Maths

How many three-digit numbers are divisible by 7?

NCERT Solutions for Class 10 Maths Chapter 5 Important NCERT Questions Arithmetic Progression NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.2 Page No:106 Questions No:13

Dasya

Asked: December 28, 2020In: Class 10 Maths

For the following APs, write the first term and the common difference: 3, 1, – 1, – 3, . . .

NCERT Solutions for Class 10 Maths Chapter 5 Important NCERT Questions Arithmetic Progression NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 5.1 Page No:99 Questions No:3

Aakav

Asked: December 28, 2020In: Class 10 Science

Fill in the blanks: A spherical mirror, who’s reflecting surface is curved inwards, that is, Faces towards the centre of the sphere, is called a……….. .

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 Multiple Choice Questions Questions No: 11 part: ii

Akanksh Singh

Asked: December 28, 2020In: Class 10 Maths

Diagonals of a trapezium ABCD with AB || DC intersect each other at the point O. If AB = 2 CD, find the ratio of the areas of triangles AOB and COD.

NCERT Solutions for Class 10 Maths Chapter 6 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 6.4 Page No:143 Questions No:2

Draw a neat labelled ray diagram of the experimental set-up for observing the scattering of light in a colloidal solution of sulphur to show how the sky appears blue and the sun appears red at sunrise and sunset.

Find the sum of the first 15 multiples of 8.

Solve the pair of linear equations by the elimination method and the substitution method: 3x + 4y = 10 and 2x – 2y = 2

Which of the following pairs of linear equations has unique solution, no solution, or infinitely many solutions. In case there is a unique solution, find it by using cross multiplication method. 3x – 5y = 20 and 6x – 10y = 40

Find the sum of the following APs: 2, 7, 12, . . ., to 10 terms.

How many three-digit numbers are divisible by 7?

For the following APs, write the first term and the common difference: 3, 1, – 1, – 3, . . .

Fill in the blanks: A spherical mirror, who’s reflecting surface is curved inwards, that is, Faces towards the centre of the sphere, is called a……….. .

Diagonals of a trapezium ABCD with AB || DC intersect each other at the point O. If AB = 2 CD, find the ratio of the areas of triangles AOB and COD.

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