The altitude of an equilateral triangle of side 2 |
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(a) |
|
(b) |
|
(c) |
|
(d) |
3 cm |
The altitude of an equilateral triangle of side 2 |
|||||||
(a) |
|
(b) |
|
(c) |
|
(d) |
3 cm |
Let ABC be the equilateral triangle and AD be the altitude on a base BC.
BC = DC = cm.
Let the length of the altitude AD be cm.
?ADB, cm.
In a Young’s double slit experiment, the slits are placed 0.320 mm apart. Light of wavelength λ = 500 mm is incident on the slits. The total number of bright fringes that are observed in the angular range −30° ≤ θ ≤ 30° is
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