Question
The top of two tower of height 48m and 60 m are
connected by wire. If the wire makes an angle of 60 ˚ with the horizontal, then the length of the wire is?Solution
AC is the wire which connected top of the tower In ∆AEC, AE = AB – CD = 12 m Sin 60˚ = AE/AC √3/2 = 12/AC AC = 24/√3 = 8√3m
Which one of the following is a compound?
A positively charged particle enters a uniform electric field directed downward. The force acting on the particle is:
What is the reason for twinkling of stars?
Which one of the following crops enriches nitrogen content in the soil?
Which device is used to measure atmospheric pressure?
Which of the following vitamin contains Cobalt?
The spokes used in the wheel of a bicycle increase its –
Electromagnetic waves travelling in a medium having relative permeability μr = 1.2 and relative permittivity Er = 0.012. The speed of electromagnetic w...
What is the main cause of the 'Itai-Itai' disease?
Which enzyme is present in human saliva?