Explanation

Confining a wave to oscillate in one plane is indeed called polarization.

Explanation

If there are 25 waves in a 5-second time period, the frequency of the waves can be calculated using the formula: Frequency= Number of waves/Time period = 25/5 =5 Hz

Explanation

If the third bulb is connected in series with bulbs A and B, the total resistance in the circuit will increase. As a result, the current flowing through the circuit will decrease, leading to a decrease in the brightness of all bulbs.

Explanation

To calculate the focal length of a lens, you can use the formula: P = 1/f

Given that the power of the lens is 10 diopters, we can rearrange the formula to solve for the focal length:

f= 1/p

f= 1/10

f= 0.1m

Since 1 meter = 100 cm, the focal length in centimeters is 0.1m × 100 cm/m= 10cm.

Explanation

In the relation E = F/q , the charge q is always positive.

Explanation

The relationship between voltage and current in a purely resistive circuit is that voltage and current are in phase.

Explanation

If light strikes the surface of glass with the equation r=r0 sin(ωt), the equation after reflection will be r=r0 sin(ωt).

Explanation

If the radius is doubled and the angular velocity remains constant, the tangential acceleration will be unchanged.

Explanation

The magnification of a compound microscope is determined by the product of the magnification of the objective lens and the magnification of the eyepiece.

Explanation

If the angle between the vector area and the electric field is 30∘, then the flux will be maximum when √3/2.