JEE 2021 | गति के नियम - L1 | Rules of speed | Class 11 भौतिक विज्ञान | Ravikant Sir | 7PM

study the following information carefully and answer the questions given below it. An exhibition is open for pubic since 9 am till 3 pm and again since 4 pm till 10 pm in a day. There are 12 batches of 1 hour each. The entry ticket bears a pass code made up of seven words, which changes every hour following a particular rule. The pass codes for 4 pm to 10 pm are same as those for respective hours during 9 am to 3 pm i.e., the pass code for 4 pm to 5 pm is same as that of 9 am to 10 am and so on. Following is an illustration of the code and steps of rearrangement for subsequent clock hours. First batch : 9 am to 10 am (4 pm to 5 pm) Pass code : dig more and you will find water Second batch : 10 am to 11 am (5 pm to 6 pm) Pass code : and dig find you water will more Third batch : 11 am to 12 noon (6 pm to 7 pm) Pass code : find and will you more water dig and so on. If the pass code for 5 pm to 6 pm is 'out in above over the field end', what will be the pass code for 1 pm to 2 pm ?

A train leaves Pune at 7 :30 am and reaches Mumbai at 11 : 30 am. Another train leaves Mumbai at 9 : 30 am and reaches Pune at 1 : 00 pm. Assuming that the two trains at constant speeds, at what time do the two trains cross each other-

study the following information carefully and answer the questions given below it. An exhibition is open for pubic since 9 am till 3 pm and again since 4 pm till 10 pm in a day. There are 12 batches of 1 hour each. The entry ticket bears a pass code made up of seven words, which changes every hour following a particular rule. The pass codes for 4 pm to 10 pm are same as those for respective hours during 9 am to 3 pm i.e., the pass code for 4 pm to 5 pm is same as that of 9 am to 10 am and so on. Following is an illustration of the code and steps of rearrangement for subsequent clock hours. First batch : 9 am to 10 am (4 pm to 5 pm) Pass code : dig more and you will find water Second batch : 10 am to 11 am (5 pm to 6 pm) Pass code : and dig find you water will more Third batch : 11 am to 12 noon (6 pm to 7 pm) Pass code : find and will you more water dig and so on. If the pass code for third batch is 'at study sleep and night child good', which batch will have the pass code 'child sleep night and study good at' ?

A and B started walking in the opposite direction from X and Y respectively at the same time. After meeting, A and B took 2.7 hours and 1.2 hours to reach Y and X respectively. If the speed of B is 48 km/hr, then find the speed of A ( in km/h ). A और B ने क्रमश X और Y से एक ही समय पर विपरीत दिशा में चलना शुरू किया | मिलने के बाद, A और B को Y और X पर पहुंचने में क्रमशः 2.7 घंटे और 1.2 घंटे लगे | यदि B की गति 48 km/h है, तो A की गति (km/h में) कितनी है ?

A gas bulb of 1 L capacity contains 2.0xx10^(11) molecules of nitrogen exerting a pressure of 7.57xx10^(3)Nm^(-2) . Calculate the root mean square (rms) speed and the temperature of the gas molecules. If the ratio of the most probable speed to the root mean square is 0.82 , calculate the most probable speed for these molecules at this temperature.