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A ray of light AO is incident on a diverging lens as shown in figure. The focal plane of the lens is also given. The possible direction of the refracted ray will be
08
Oct
A ray of light AO is incident on a diverging lens as shown in figure. The focal plane of the lens is also given. The possible direction of the refracted ray will be A ray of light AO is incident on a diverging lens as shown in figure. The focal plane of the lens is [...]
1. Complete the following statements: c) When we write ∠A=∠B, we actually mean…………..
08
Oct
1. Complete the following statements: c) When we write ∠A=∠B, we actually mean………….. 1. Complete the following statements: c) When we write ∠A=∠B we actually mean.............. October 8, 2020 Category: Chapter 7 - Congruence of Triangles , Maths , NCERT Class 7 ,
Consider a sphere of radius R made of glass of refractive index mu. A small object moves along the diameter with a constant velocity u. Find the velocity of the image as seen be
08
Oct
Consider a sphere of radius R made of glass of refractive index mu. A small object moves along the diameter with a constant velocity u. Find the velocity of the image as seen be Consider a sphere of radius R made of glass of refractive index mu. A small object moves along the diameter with [...]
1. Complete the following statements: b) Among two congruent angles, one has measure of 70 degree, the measure of the other angle is ……………
08
Oct
1. Complete the following statements: b) Among two congruent angles, one has measure of 70 degree, the measure of the other angle is …………… 1. Complete the following statements: b) Among two congruent angles one has measure of 70 degree the measure of the other angle is ............... October 8, 2020 Category: Chapter 7 - [...]
A converging beam of rays is incident on a diverging thin lens. Having passed through the lens the rays intersect at a point 15 cm from the lens. If lens is removed the point where
08
Oct
A converging beam of rays is incident on a diverging thin lens. Having passed through the lens the rays intersect at a point 15 cm from the lens. If lens is removed the point where A converging beam of rays is incident on a diverging thin lens. Having passed through the lens the rays intersect [...]
1. Complete the following statements: a) Two line segments are congruent if …………….
08
Oct
1. Complete the following statements: a) Two line segments are congruent if ……………. 1. Complete the following statements: a) Two line segments are congruent if ................ October 8, 2020 Category: Chapter 4 - Simple Equations , Chapter 7 - Congruence of Triangles , Maths , NCERT Class 7 ,
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An object starts moving at an angle of 45 with the principal axis as shown in figure in front of a biconvex lens of focal length +10 cm. If theta denotes the angle at which image starts
08
Oct
An object starts moving at an angle of 45 with the principal axis as shown in figure in front of a biconvex lens of focal length +10 cm. If theta denotes the angle at which image starts An object starts moving at an angle of 45 with the principal axis as shown in figure in [...]
A diverging lens of focal length 10 cm is placed 10 cm away in front of a plane mirror as shown in figure. Light from a very far away source falls on the lens. An observer is situated
08
Oct
A diverging lens of focal length 10 cm is placed 10 cm away in front of a plane mirror as shown in figure. Light from a very far away source falls on the lens. An observer is situated A diverging lens of focal length 10 cm is placed 10 cm away in front of a [...]
Solve the following riddle: I am a number, Tell my identity! Take me seven times over, And add a fifty! To reach a triple century, You still need forty!
08
Oct
Solve the following riddle: I am a number, Tell my identity! Take me seven times over, And add a fifty! To reach a triple century, You still need forty! And add a fifty! To reach a triple century Solve the following riddle: I am a number Tell my identity! Take me seven times over You [...]
Solve the following: (iii) People of Sundergram planted trees in the village garden. Some of the trees were fruit trees. The numbers of non-fruit trees were two more than three times the number of fruit trees. What was the number of fruit trees planted if the number of non-fruit trees planted was 77 ?
08
Oct
Solve the following: (iii) People of Sundergram planted trees in the village garden. Some of the trees were fruit trees. The numbers of non-fruit trees were two more than three times the number of fruit trees. What was the number of fruit trees planted if the number of non-fruit trees planted was 77 ? 2m [...]