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A small particle is placed at the pole of a concave mirror and then moved along the principal axis to a large distance. During the motion, the distance between the pole of the mirror and the
09
Oct
A small particle is placed at the pole of a concave mirror and then moved along the principal axis to a large distance. During the motion, the distance between the pole of the mirror and the A small particle is placed at the pole of a concave mirror and then moved along the principal axis [...]
1.Find the area of each of the following parallelograms:
09
Oct
1.Find the area of each of the following parallelograms: 1.Find the area of each of the following parallelograms: October 9, 2020 Category: Chapter 11 - Perimeter and Area , Maths , NCERT Class 7 ,
1.Find the area of each of the following parallelograms:
09
Oct
1.Find the area of each of the following parallelograms: 1.Find the area of each of the following parallelograms: October 9, 2020 Category: Chapter 11 - Perimeter and Area , Maths , NCERT Class 7 ,
1.Find the area of each of the following parallelograms:
09
Oct
1.Find the area of each of the following parallelograms: 1.Find the area of each of the following parallelograms: October 9, 2020 Category: Chapter 11 - Perimeter and Area , Maths , NCERT Class 7 ,
8. A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m. Find the cost of white washing the wall, if the rate of white washing the wall is Rs. 20 per m^2.
09
Oct
8. A door of length 2 m and breadth 1 m is fitted in a wall. The length of the wall is 4.5 m and the breadth is 3.6 m. Find the cost of white washing the wall, if the rate of white washing the wall is Rs. 20 per m^2. 8. A door of [...]
7. The perimeter of a rectangle is 130 cm. If the breadth of the rectangle is 30 cm, find its length. Also, find the area of the rectangle.
09
Oct
7. The perimeter of a rectangle is 130 cm. If the breadth of the rectangle is 30 cm, find its length. Also, find the area of the rectangle. 7. The perimeter of a rectangle is 130 cm. If the breadth of the rectangle is 30 cm find its length. Also find the area of the [...]
An object O (real) is placed at focus of an equi-biconvex lens as shown in figure. The refractive index of the lens is mu = 1.5 and the radius of curvature of either surface of lens is R.
09
Oct
An object O (real) is placed at focus of an equi-biconvex lens as shown in figure. The refractive index of the lens is mu = 1.5 and the radius of curvature of either surface of lens is R. An object O (real) is placed at focus of an equi-biconvex lens as shown in figure. The [...]
6. A wire is in the shape of a rectangle. Its length is 40 cm and breadth is 22 cm. If the same wire is rebent in the shape of a square, what will be the measure of each side. Also find which shape encloses more area?
09
Oct
6. A wire is in the shape of a rectangle. Its length is 40 cm and breadth is 22 cm. If the same wire is rebent in the shape of a square, what will be the measure of each side. Also find which shape encloses more area? 6. A wire is in the shape of [...]
5.The area of a square park is the same as of a rectangular park. If the side of the square park is 60 m and the length of the rectangular park is 90 cm, find the breadth of the rectangular park.
09
Oct
5.The area of a square park is the same as of a rectangular park. If the side of the square park is 60 m and the length of the rectangular park is 90 cm, find the breadth of the rectangular park. 5.The area of a square park is the same as of a rectangular park. [...]
An object O is kept in front of a converging lens of focal length 30 cm behind which there is a plane mirror at 15 cm from the lens. Choose the correct statements.
09
Oct
An object O is kept in front of a converging lens of focal length 30 cm behind which there is a plane mirror at 15 cm from the lens. Choose the correct statements. An object O is kept in front of a converging lens of focal length 30 cm behind which there is a plane [...]