Question
Which is the method of transfer of heat in
solid?Solution
Convection method is used in liquid and gas. Radiation method is used in liquid and gas.
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 22.5 m/s. Train Q starts from Dehradun to Lucknow at 1:35 pm with an aver...
A train crosses a man in 12 seconds and a platform 480 meters long in 36 seconds. Calculate the time (in seconds) it takes for the train to overtake a b...
Three cities A, B, and C are located such that they form the vertices of an equilateral triangle if joined by straight lines. Prasanna travels from A t...
The distance between two points 'X' and 'Y' is 1,500 km. Raj and Suresh can cover the distance between 'X' and 'Y' in 25 hours and 20 hours, respectivel...
Amrita traveled a certain distance, covering 50% of it at a speed of 15 km/h, then 40% of the remaining distance at 7.5 km/h, and the rest at 9 km/h. If...
- From a total of 280 km, Sumit covered some distance by train at 70 km/h and the rest by bus at 35 km/h. If the entire trip took 5.8 hours, how much distanc...
An Aeroplane flies along a Square field @ 50, 100, 200 and 400 km/hours respectively. Then find the Average speed of the aeroplane during the whole jour...
Train A whose length is 180m is crosses a man standing in the bridge in 4.5 seconds. Train B whose length is165 m, is running at a speed of 63 km/hr and...
- How far will 'Puneet' travel by the time he catches up to 'Bittu', given that 'Puneet' starts 90 km behind and moves at 45 km/h while 'Bittu' moves at 30 k...
R jogs at twice the speed of walking and runs at twice the speed of jogging. From his home to office, he covers half of the distance by walking and the ...
Relevant for Exams:
