Question
The sudden fall of atmospheric pressure indicates
–Solution
Atmospheric pressure is basically the weight of air in the atmosphere above the reservoir, so the level of mercury continues to change until the weight of mercury in the glass tube is exactly equal to the weight of air above the reservoir.
The lateral surface area of a regular tetrahedron is 75√3 cm². Determine the volume of the tetrahedron.
Find the area of sector of a circle whose radius is 21 cm and angle subtended by the sector at centre of circle is 45 ° .
The perimeter of a rectangle is 64 cm. The side of a square is equal to the average of the rectangle’s length and breadth. Find the area of the square...
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The radii of two solid right circular cylinders are 11 cm and 9 cm respectively and their heights are (h+1) cm and (2h+1) cm respectively. If the areas ...
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A cone has a radius of 5 cm and a slant height of 13 cm. Find the total surface area of the cone.[Take π = 3.14 ]
If x4 – 62x2 + 1 = 0, then a value of x 3 + x -3 can be:
The base of a triangle is 18 cm and height is 15 cm. The height of another triangle of double the area having the base 27 cm is:
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