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Write equation for the following statements : (ii) 2 subtracted from y is 8.
08
Oct
Write equation for the following statements : (ii) 2 subtracted from y is 8. Write equation for the following statements : (ii) 2 subtracted from y is 8. October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,
A hollow double concave lens is made of very thin transparent material. It can be filled with air or either of two liquids L1 or L2 having refractive indices n1 and n2, respectively
08
Oct
A hollow double concave lens is made of very thin transparent material. It can be filled with air or either of two liquids L1 or L2 having refractive indices n1 and n2, respectively A hollow double concave lens is made of very thin transparent material. It can be filled with air or either of two [...]
Point object O is placed on the principal axis of a convex lens of focal length 20 cm at a distance of 40 cm to the left of it. The diameter of the lens is 10 cm. If the eye is placed 60 cm
08
Oct
Point object O is placed on the principal axis of a convex lens of focal length 20 cm at a distance of 40 cm to the left of it. The diameter of the lens is 10 cm. If the eye is placed 60 cm Point object O is placed on the principal axis of a [...]
Write equation for the following statements : (i) The sum of numbers x and 4 is 9.
08
Oct
Write equation for the following statements : (i) The sum of numbers x and 4 is 9. Write equation for the following statements : (i) The sum of numbers x and 4 is 9. October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,
An object is kept at a distance of 16 cm from a thin lens and the image formed is real. If the object is kept at a distance of 6 cm from the same lens, the image formed is virtual.
08
Oct
An object is kept at a distance of 16 cm from a thin lens and the image formed is real. If the object is kept at a distance of 6 cm from the same lens, the image formed is virtual. An object is kept at a distance of 16 cm from a thin lens and [...]
Solve the following equation by trial and error method: (ii) 3m – 14 = 4
08
Oct
Solve the following equation by trial and error method: (ii) 3m – 14 = 4 Solve the following equation by trial and error method: (ii) 3m - 14 = 4 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,
Two identical glass (mu g = 3/2) equiconvex lenses of focal length f are kept in contact. The space between the two lenses is filled with water ( mu w = 4/3). The focal length of the
08
Oct
Two identical glass (mu g = 3/2) equiconvex lenses of focal length f are kept in contact. The space between the two lenses is filled with water ( mu w = 4/3). The focal length of the Two identical glass (mu g = 3/2) equiconvex lenses of focal length f are kept in contact. The [...]
Solve the following equation by trial and error method: (i) 5p+2=17
08
Oct
Solve the following equation by trial and error method: (i) 5p+2=17 Solve the following equation by trial and error method: (i) 5p+2=17 October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,
A ray of light is incident on a glass sphere of refractive index 3/2. What should be the angle of incidence so that the ray which enters the sphere does not come out of the sphere?
08
Oct
A ray of light is incident on a glass sphere of refractive index 3/2. What should be the angle of incidence so that the ray which enters the sphere does not come out of the sphere? A ray of light is incident on a glass sphere of refractive index 3/2. What should be the angle [...]
Check whether the value given in the brackets is a solution to the given equation or not: (f) 4p−3=13(p=0)
08
Oct
Check whether the value given in the brackets is a solution to the given equation or not: (f) 4p−3=13(p=0) Check whether the value given in the brackets is a solution to the given equation or not: (f) 4p−3=13(p=0) October 8, 2020 Category: Chapter 4 - Simple Equations , Maths , NCERT Class 7 ,