Distance between two place in which angle change is D = n(cotθ₁ + cotθ₂) Distance = 1440√3 (cot30° + cot60°) = 1440√3 × √3 - 1/√3 = 1440√3 × 2/√3 = 2880 m So, distance covered by plane in 12 sec = 2880 m Speed of plane = 2880/12 = 240 m/sec.
Which instrument is commonly used to measure atmospheric pressure?
Consider the following statements:
1. A flute of smaller length produces waves of lower
2. Sound travels in rocks in the form of longitudi...
The instrument for measuring intensity of earthquakes is called –
What term describes the resistance of an object to changes in its state of motion or rest?
Who among the following is credited with the discovery of X-rays?
Which of the following statements about X-rays is INCORRECT ?
Adhesive force is the force of
Which medium cannot propagate sound waves?
I threw a ball horizontally on the road and after covering certain distance, the ball stopped due to
UNO was established on?
