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2.Factorise the following expressions (iii) 7a^2+ 14a
12
Oct
2.Factorise the following expressions (iii) 7a^2+ 14a 2.Factorise the following expressions (iii) 7a^2+ 14a October 12, 2020 Category: Chapter 14 - Factorisation , Maths , NCERT Class 8 ,
A laser emits a light pulse of duration T = 0.10 ms and energy E = 10 J. Find the mean pressure exerted by such a pulse when it is focused on a spot of diameter d = 10 mu m on
12
Oct
A laser emits a light pulse of duration T = 0.10 ms and energy E = 10 J. Find the mean pressure exerted by such a pulse when it is focused on a spot of diameter d = 10 mu m on A laser emits a light pulse of duration T = 0.10 ms and [...]
2.Factorise the following expressions (ii) 6p–12q
12
Oct
2.Factorise the following expressions (ii) 6p–12q 2.Factorise the following expressions (ii) 6p–12q October 12, 2020 Category: Chapter 14 - Factorisation , Maths , NCERT Class 8 ,
A radiation of wavelength 200 nm is propagating in the form of a parallel surface. The intensity of the beam is 5 mW and its cross-sectional area is 1.0 mm^2. Find the pressure exerted
12
Oct
A radiation of wavelength 200 nm is propagating in the form of a parallel surface. The intensity of the beam is 5 mW and its cross-sectional area is 1.0 mm^2. Find the pressure exerted A radiation of wavelength 200 nm is propagating in the form of a parallel surface. The intensity of the beam is [...]
2.Factorise the following expressions (i) 7x–42
12
Oct
2.Factorise the following expressions (i) 7x–42 2.Factorise the following expressions (i) 7x–42 October 12, 2020 Category: Chapter 14 - Factorisation , Maths , NCERT Class 8 ,
The sun gives light at the rate of 1400 Wm^-2 of area perpendicular to the direction of light. Assume lemda (sunlight ) = 6000 A. Calculate (a) the number of photons per second
12
Oct
The sun gives light at the rate of 1400 Wm^-2 of area perpendicular to the direction of light. Assume lemda (sunlight ) = 6000 A. Calculate (a) the number of photons per second The sun gives light at the rate of 1400 Wm^-2 of area perpendicular to the direction of light. Assume lemda (sunlight ) [...]
1. Find the common factors of the given terms. (viii) 3x^2y^3 , 10x^3y^2 , 6x^2y^2z
12
Oct
1. Find the common factors of the given terms. (viii) 3x^2y^3 , 10x^3y^2 , 6x^2y^2z 1. Find the common factors of the given terms. (viii) 3x^2y^3 10x^3y^2 6x^2y^2z October 12, 2020 Category: Chapter 14 - Factorisation , Maths , NCERT Class 8 ,
1. Find the common factors of the given terms. (vii) 10 pq, 20qr, 30 rp
12
Oct
1. Find the common factors of the given terms. (vii) 10 pq, 20qr, 30 rp 1. Find the common factors of the given terms. (vii) 10 pq 20qr 30 rp October 12, 2020 Category: Chapter 14 - Factorisation , Maths , NCERT Class 8 ,
A plate of mass 10 g is in equilibrium in air due to the force exerted by a light beam on the plate. Calculate power of the beam. Assume that the plate is perfectly absorbing.
12
Oct
A plate of mass 10 g is in equilibrium in air due to the force exerted by a light beam on the plate. Calculate power of the beam. Assume that the plate is perfectly absorbing. A plate of mass 10 g is in equilibrium in air due to the force exerted by a light beam [...]
1. Find the common factors of the given terms. (vi) 16 x^3, – 4x^2 , 32 x
12
Oct
1. Find the common factors of the given terms. (vi) 16 x^3, – 4x^2 , 32 x – 4x^2 1. Find the common factors of the given terms. (vi) 16 x^3 32 x October 12, 2020 Category: Chapter 14 - Factorisation , Maths , NCERT Class 8 ,