Question
The number of chocolates in boxes 'A', 'B', and 'C' are
in the ratio 4:7:9. Combined in all 3 boxes, the total is 140 chocolates. If 4 chocolates are transferred from box 'B' to box 'A', and subsequently, 3 chocolates are moved from box 'C' to box 'B', what is the new ratio of chocolates in boxes 'A', 'B', and 'C'?Solution
Number of chocolates in box βAβ = 140 Γ (4/20) = 28 Number of chocolates in box βBβ = 140 Γ (7/20) = 49 Number of chocolates in box βCβ = 140 Γ (9/20) = 63 Now, new ratio of number of chocolates in box βAβ, βBβ and βCβ = (28 + 4):(49 β 4 + 3):(63 β 3) = 32:48:60 = 8:12:15
The experimental evidence that the electron exhibits wave-like characteristics was first provided by:
A solid non-conducting sphere of radius R carries a uniform volume charge density Ο. What is the ratio of electric field at r = R (surface) to that at ...
In Youngβs double-slit experiment, if the distance between slits is increased, fringe width:
Which of the following phenomena establishes the transverse nature of light waves?
An object of mass βmβ be made to fall freely from a height βhβ. At the start the potential energy is _____ and kinetic energy is ______.
...A galvanometer coil has a resistance of 14 Ξ© and the metre shows full scale deflection for a current of 4 mA. How will you convert the metre into a vo...
Find the power if a force of 100 N displaces an object by 10 m in 5 seconds.
A ray of light passing through an equilateral triangular glass prism from air undergoes minimum deviation when angle of incidence is 75% of the angle o...
The 'four stroke petrol engine' is based on β
