The general equation of a wave CANNOT be written as
y = A Sin [2 π (\(\frac{t}{T}\) ± Xλ)]
y = A Sin [wt ± kx]
y = A Sin [2 \(\frac{\pi}{\lambda}\) (vt ± x)]
y = A Sin [2π (ft ± \(\frac{X}{\lambda}\) )]
y = A Sin 2 π f(T ± \(\frac{X}{\lambda}\))]
Correct answer is E
No explanation has been provided for this answer.
equal and opposite to FB
equal to and in the same direction with FB
greater than and in the same direction with FB
greater than and opposite to FB
less than and opposite to FB
Correct answer is A
No explanation has been provided for this answer.
A sheet of white paper viewed through blue glass appears blue because
blue is a primary colour
the glass absorbs all colours except the blue colour
the glass reflects blue colour
the paper reflects blue colour only
white light is easily absorbed by the glass
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements is NOT true?
A lead-acid accumulator can deliver a large current because of its very large internal resistance.
A secondary cell can be recharged.
As a lead-acid accumulator is being charged, the density of the acid in it increases.
The chemical action in a primary cell is irreversible.
The conventional current in a circuit rlows from the positive to the negative terminal of the battery.
Correct answer is A
No explanation has been provided for this answer.
32.84cm3
40.02cm3
48.40cm3
57.44cm3
72.84cm3
Correct answer is C
No explanation has been provided for this answer.