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1. Find the ratio of: (a) Rs. 5 to 50 paise
08
Oct
1. Find the ratio of: (a) Rs. 5 to 50 paise 1. Find the ratio of: (a) Rs. 5 to 50 paise October 8, 2020 Category: Chapter 8 - Comparing Quantities , Maths , NCERT Class 7 ,
An object is placed at f/2 away from first focus of a convex lens where f is the focal length of the lens. Its image is formed at a distance 3f/2 in a slab of refractive index 3/2,
08
Oct
An object is placed at f/2 away from first focus of a convex lens where f is the focal length of the lens. Its image is formed at a distance 3f/2 in a slab of refractive index 3/2, An object is placed at f/2 away from first focus of a convex lens where f is [...]
10. Explain, why ΔABC ≅ΔFED.
08
Oct
10. Explain, why ΔABC ≅ΔFED. 10. Explain why ΔABC ≅ΔFED. October 8, 2020 Category: Chapter 7 - Congruence of Triangles , Maths , NCERT Class 7 ,
9. If ΔABC and ΔPQR are to be congruent, name one additional pair of corresponding parts. What criterion did you use?
08
Oct
9. If ΔABC and ΔPQR are to be congruent, name one additional pair of corresponding parts. What criterion did you use? 9. If ΔABC and ΔPQR are to be congruent name one additional pair of corresponding parts. What criterion did you use? October 8, 2020 Category: Chapter 7 - Congruence of Triangles , Maths , [...]
8.Draw a rough sketch of two triangles such that they have five pairs of congruent parts but still the triangles are not congruent.
08
Oct
8.Draw a rough sketch of two triangles such that they have five pairs of congruent parts but still the triangles are not congruent. 8.Draw a rough sketch of two triangles such that they have five pairs of congruent parts but still the triangles are not congruent. October 8, 2020 Category: Chapter 7 - Congruence of [...]
Find the distance of object placed in the slab of refractive index mu from point P of the curved surface of radius R so that image is formed at infinity.
08
Oct
Find the distance of object placed in the slab of refractive index mu from point P of the curved surface of radius R so that image is formed at infinity. Find the distance of object placed in the slab of refractive index mu from point P of the curved surface of radius R so that [...]
7. In a squared sheet, draw two triangles of equal area such that: (ii) the triangles are not congruent. What can you say about their perimeters?
08
Oct
7. In a squared sheet, draw two triangles of equal area such that: (ii) the triangles are not congruent. What can you say about their perimeters? 7. In a squared sheet draw two triangles of equal area such that: (ii) the triangles are not congruent. What can you say about their perimeters? October 8, 2020 [...]
A convex lens of focal length f cut into parts first horizontally and then vertically. Find the focal length of part A of the lens, as shown.
08
Oct
A convex lens of focal length f cut into parts first horizontally and then vertically. Find the focal length of part A of the lens, as shown. A convex lens of focal length f cut into parts first horizontally and then vertically. Find the focal length of part A of the lens as shown October [...]
7. In a squared sheet, draw two triangles of equal area such that: (i) the triangles are congruent. What can you say about their perimeters?
08
Oct
7. In a squared sheet, draw two triangles of equal area such that: (i) the triangles are congruent. What can you say about their perimeters? 7. In a squared sheet draw two triangles of equal area such that: (i) the triangles are congruent. What can you say about their perimeters? October 8, 2020 Category: Chapter [...]
When an object is placed on the principal axis of a convex lens at two different positions, it produces the image with magnifications +2 and -4 respectively. How many times
08
Oct
When an object is placed on the principal axis of a convex lens at two different positions, it produces the image with magnifications +2 and -4 respectively. How many times it produces the image with magnifications +2 and -4 respectively. How many times When an object is placed on the principal axis of a convex [...]