Related Questions

A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the train is 54 km/hr, what is the length of the platform?
A 300 m
B 120 m
C 240 m
D None of these
A train passes a platform in 40 sec and a woman standing on the platform in 30 sec. If the speed of the train is 108 km/hr, what is the length of the platform?
A 100m
B 300m
C 900m
D 1020m
A train passes a platform in 40 sec and a woman standing on the platform in 30 sec . the speed of the train is 108 km / hr, what is the length of the platform ?
A 100 m
B 300 m
C 900 m
D 1020 m
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
A 120 m
B 240 m
C 300 m
D None of these
The average of 100 observations in a study was calculated as 49.7 . Later it was revealed that one of the observations was misread as 64 instead of 94. What will be the correct average ?
A 52.5
B 49.8
C 55
D 50
A satellite signal transmitted from a satellite transponder to earth’s station.
A Uplink
B Downlink
C Terrestrial
D Earthbound
For interpolation of satellite data used for monitoring dynamic changes that occurs on the earth surface, the most suitable orbit for the satellite is:
A Circular orbit
B Sun-synchronous orbit
C Near polar orbit
D None of these
পৃথিবী পৃষ্ঠে একটি ইটের ওজন 81 N. পৃথিবীর অর্ধেক বাসার্ধের সমান উচ্চতায় এবং অর্ধেক বাসার্ধের সমান গভীরতায় ইউটির উপরে পৃথিবীর অভিকর্ষ বলের মান কত হবে?(A brick weighs 81 N on the surface of the earth. What are the earth's gravitational forces act on it at a height of half of the radius of the earth and at a depth of half of the radius of earth, respectively?)
A 36 N and 81 N
B 36 N and 40.5 N
C 36 N and 20.25 N
D 98 and 40.5 N
E 81 N and 81 N
What is the delay time for satellite transmission from earth transmitter to earth receiver?
A 0.5 s
B 1.0 s
C 5 ms
D 0.25 ms
What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation?
A 26,426.4 miles
B 27,426.4 miles
C 23,426.4 miles
D 22,426.4 miles

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