Question
Necessary element of change in solar energy to electric
energy –Solution
A small solar electric or photovoltaic (PV) converts solar energy into electrical energy. Solar cells consist of semiconductor materials which work on photoelectric effect. Silicon remains the most popular material for solar cells.
The weights (in kg) of 11 students are:
40, 45, 47, 50, 52, 52, 55, 55, 55, 60, 65
Find:
(a) the mean weight,
(b) the median weight,
In a triangle ABC, the internal bisector of ∠A meets side BC at D. If AB = 6 cm, AC = 9 cm, and BC = 12 cm, what is the length of BD?Â
Two friends, Ammu and Beenu, had some candies. One of them had 10 more candies than the other. The candies Ammu had were 60% of the total candies they h...
If x = a cos³ θ, y = a sin³ θ, then dy/dx at any θ is:
Find the general solution of cos 3x = 1/2:
(76.98% of 599.98) ÷ 20.99 = ? + 7.98% of 199.99
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y and choose the...
13, 55, 111, 183, 273, ?Â
The pie chart below represents the degree distribution of employees across five different offices, with a total of 4500 employees...
If tan(π/4 + θ) = 3, find tan(2θ):
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