1
TG EAPCET 2024 (Online) 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The work functions of two photosensitive metal surfaces $A$ and $B$ are in the ratio $2: 3$. If $x$ and $y$ are the slopes of the graphs drawn between the stopping potential and frequency of incident light for the surfaces $A$ and $B$ respectively, then $x: y=$
A
$1: 1$
B
$2: 3$
C
$4: 9$
D
$2: 5$
2
TG EAPCET 2024 (Online) 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Wave picture of light has failed to explain
A
photoelectric effect
B
interference of light
C
diffraction of light
D
polarisation of light
3
TG EAPCET 2024 (Online) 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The efficiency of a bulb of power 60 W is $16 \%$. The peak value of the electric field produced by the electromagnetic radiation from the bulb at a distance of 2 m from the bulb is $\left(\frac{1}{4 \pi \varepsilon_{0}}=9 \times 10^{9} \mathrm{Nm}^{2} \mathrm{C}^{-2}\right)$
A
$24 \mathrm{Vm}^{-1}$
B
$16 \mathrm{Vm}^{-1}$
C
$9 \mathrm{Vm}^{-1}$
D
$12 \mathrm{Vm}^{-1}$
4
TG EAPCET 2024 (Online) 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The work function of a photosensitive metal surface is 1.1 eV . Two light beams of energies 1.5 eV and 2 eV incident on the metal surface. The ratio of the maximum velocities of the emitted photoelectrons is
A
$3: 4$
B
$1: 1$
C
$2: 3$
D
$4: 9$
TS EAMCET Subjects
EXAM MAP