1
KCET 2025
MCQ (Single Correct Answer)
+1
-0

The anode voltage of a photocell is kept fixed. The frequency of the light falling on the cathode is gradually increased. Then the correct graph which shows the variation of photo current I with the frequency $v$ of incident light is

A
KCET 2025 Physics - Dual Nature of Radiation Question 1 English Option 1
B
KCET 2025 Physics - Dual Nature of Radiation Question 1 English Option 2
C
KCET 2025 Physics - Dual Nature of Radiation Question 1 English Option 3
D
KCET 2025 Physics - Dual Nature of Radiation Question 1 English Option 4
2
KCET 2025
MCQ (Single Correct Answer)
+1
-0

When a bar magnet is pushed towards the coil, along its axis, as shown in the figure, the galvanometer pointer deflects towards X . When this magnet is pulled away from the coil, the galvanometer pointer

KCET 2025 Physics - Electromagnetic Induction Question 1 English
A
Deflects towards $X^1$
B
Does not deflect
C
Oscillates
D
Deflects towards X
3
KCET 2025
MCQ (Single Correct Answer)
+1
-0

A square loop of side 2 m lies in the Y-Z plane in a region having a magnetic field $\overrightarrow{\mathrm{B}}=(5 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}}) \mathrm{T}$. The magnitude of magnetic flux through the square loop is

A
20 Wb
B
12 Wb
C
16 Wb
D
10 Wb
4
KCET 2025
MCQ (Single Correct Answer)
+1
-0

In domestic electric mains supply, the voltage and the current are

A
AC voltage and DC current
B
DC voltage and DC current
C
DC voltage and AC current
D
AC voltage and AC current
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