1
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

A coil of inductance 0.1 H and resistance $$110 \Omega$$ is connected to a source of 110 V and 350 Hz . The phase difference between the voltage maximum and the current maximum is

A
$$\tan ^{-1}(1.5)$$
B
$$\tan ^{-1}(0.5)$$
C
$$\tan ^{-1}(1.73)$$
D
$$\tan ^{-1}(2)$$
2
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

If the average power per unit area delivered by an electromagnetic wave is $$9240 \mathrm{~Wm}^{-2}$$. then the amplitude of the oscillating magnetic field in EM wave is

A
$$4.4 ~\mu \mathrm{T}$$
B
$$6.6 ~\mu \mathrm{T}$$
C
$$8.8~ \mu \mathrm{T}$$
D
$$102 ~\mu \mathrm{T}$$
3
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

A beam of light with intensity $$10^{-3} \mathrm{~Nm}^{-2}$$ and cross-sectional area $$20 \mathrm{~cm}^2$$ is incident on a fully reflective surface at angle $$45^{\circ}$$. Then, the force exerted by the beam on the surface is

A
$$2.3 \times 10^{-15} \mathrm{~N}$$
B
$$1.33 \times 10^{-14} \mathrm{~N}$$
C
$$6.67 \times 10^{-15} \mathrm{~N}$$
D
$$9.4 \times 10^{-15} \mathrm{~N}$$
4
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

The metal which has the highest work function in the following is

A
Cesium (Cs)
B
Sodium ( Na )
C
Aluminium (Al)
D
Platinum (Pt)
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