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ATQ, A reaches the destination at 12 noon at 15 km/hr and at 10 a.m. at 30 km/hr. Distance = 60 km (calculated using time difference of 2 hours). To reach at 11 a.m., A needs to take 3 hours. Required speed = (60 km/3hr) = 20 km/hr A should cycle at 20 km/hr to reach at 11 a.m.
Which of the following phenomena establishes the transverse nature of light waves?
The functioning of a quartz crystal in a watch is based on which principle?
________ are the elements of group 18.
In an atom, which particles are responsible for chemical bonding?
Which of the following is the ultimate source of energy?
A pond of water appears less deep due to –
Which of the following correctly describes the nature of electric field lines?
The Pointing vector of electromagnetic waves has the same dimensions as that of:
A sphere of radius 1m encloses a charge of 10μC. Another charge of −5μC is placed inside the sphere. The net electric flux would be :
The pitch of a sound is primarily determined by which of the following?
