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Solve the following equations: (f) 3s = −9 Solve the following equations: (f) 3s = −9 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,

Two thin symmetrical lenses of different nature and of different material have equal radii of curvature R = 15 cm. The lenses are put close together and immersed in water (mu w = 4/3). Two thin symmetrical lenses of different nature and of different material have equal radii of curvature R = 15 cm. The [...]

Solve the following equations: (e) 3p/4=6 Solve the following equations: (e) 3p/4=6 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,

Solve the following equations: (d) -p/3 = 5 Solve the following equations: (d) -p/3 = 5 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,

Two point sources S1 and S2 are 24 cm apart. Where should a convex lens of focal length 9 cm be placed in between them so that the images of both sources are formed at the same place? Two point sources S1 and S2 are 24 cm apart. Where should a convex lens of focal [...]

Solve the following equations: (c) p/4=5 Solve the following equations: (c) p/4=5 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,

Solve the following equations: (b) 10p+10=100 Solve the following equations: (b) 10p+10=100 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,

The apparent thickness of a thick plano-convex lens is measured once with the plane face upward and then with the convex face upward. The value will be The apparent thickness of a thick plano-convex lens is measured once with the plane face upward and then with the convex face upward. The value will be October [...]

Solve the following equations: (a) 10p=100 Solve the following equations: (a) 10p=100 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,

In a slide show programme, the image on the screen has an area 900 times that of the slide. If the distance between the slide and the screen is x times the distance between the slide and the projector In a slide show programme the image on the screen has an area 900 times that [...]