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Let the total distance be 12 km and speed be 12 km/hr Time taken to cover 12 km with the speed of 12 km/hr = 1 hr According to the question New distance = 12/3 = 4 km New time = 3 × 1 = 3 hrs New speed = 4/3 km/hr ∴ Ratio of new speed to original speed = 4/3:12 = 1:9
A new technology which provides the ability to create an artificial world and have people interact with it is called –
The frequency of ultrasonic waves is:
A sudden drop in barometric pressure indicates which of the following?
The distance- time graph for a body moving at uniform speed is?
When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of –
Which of the following is NOT a conductor of electricity?
The weight (W) of a body is derived from which formula?
A particle moves in a circle of radius 10 cm with a constant speed. Its angular displacement after 2 seconds is π radians. What is its linear speed?
Cryogenics is a branch of Physics that deals with what?
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