1
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The figure shows the variation of photocurrent with anode potential for four different radiations. Let $\mathrm{I}_{\mathrm{a}}, \mathrm{I}_{\mathrm{b}}, \mathrm{I}_{\mathrm{c}}$ and $\mathrm{I}_{\mathrm{d}}$ be the intensities for the curves $a, b, c$ and $d$ respectively $\left[f_a, f_b, f_c\right.$ and $f_d$ are frequencies respectively]

MHT CET 2024 16th May Morning Shift Physics - Dual Nature of Radiation Question 33 English

A
$\mathrm{f}_{\mathrm{a}}=\mathrm{f}_{\mathrm{b}}>\mathrm{f}_{\mathrm{c}}>\mathrm{f}_{\mathrm{d}}$ and $\mathrm{I}_{\mathrm{a}}=\mathrm{I}_{\mathrm{b}}>\mathrm{I}_{\mathrm{c}}>\mathrm{I}_{\mathrm{d}}$
B
$\mathrm{f}_{\mathrm{a}}<\mathrm{f}_{\mathrm{b}}>\mathrm{f}_{\mathrm{c}}=\mathrm{f}_{\mathrm{d}}$ and $\mathrm{I}_{\mathrm{a}}=\mathrm{I}_{\mathrm{b}}>\mathrm{I}_{\mathrm{c}}>\mathrm{I}_{\mathrm{d}}$
C
$\mathrm{f}_{\mathrm{a}}=\mathrm{f}_{\mathrm{b}}=\mathrm{f}_{\mathrm{c}}=\mathrm{f}_{\mathrm{d}}$ and $\mathrm{I}_{\mathrm{a}}<\mathrm{I}_{\mathrm{b}}<\mathrm{I}_{\mathrm{c}}<\mathrm{I}_{\mathrm{d}}$
D
$\mathrm{f}_{\mathrm{a}}>\mathrm{f}_{\mathrm{b}}>\mathrm{f}_{\mathrm{c}}>\mathrm{f}_{\mathrm{d}}$ and $\mathrm{I}_{\mathrm{a}}=\mathrm{I}_{\mathrm{b}}=\mathrm{I}_{\mathrm{c}}=\mathrm{I}_{\mathrm{d}}$
2
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When a resistance of $100 \Omega$ is connected in series with a galvanometer of resistance G , its range is V . To double its range a resistance of $1000 \Omega$ is connected in series. The value of G is

A
$400 \Omega$
B
$300 \Omega$
C
$200 \Omega$
D
$100 \Omega$
3
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The angular separation of the central maximum in the Fraunhofer diffraction pattern is measured. The slit is illuminated by the light of wavelength $6000 \mathop A\limits^o$. If the slit is illuminated by light of another wavelength, the angular separation decreases by $20 \%$. The wavelength of light used is

A
$6400 \mathop A\limits^o$
B
$5600 \mathop A\limits^o$
C
$4800 \mathop A\limits^o$
D
$4400 \mathop A\limits^o$
4
MHT CET 2024 16th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A particle starting from rest moves along the circumference of a circle of radius ' $r$ ' with angular acceleration ' $\alpha$ '. The magnitude of the average velocity in time it completes the small angular displacement ' $\theta$ ' is

A
$\frac{r^2}{2 \alpha \theta}$
B
$\frac{\mathrm{r}}{2 \alpha \theta}$
C
$\frac{\mathrm{r} \alpha \theta}{2}$
D
$\frac{\mathrm{r}}{\sqrt{2}} \sqrt{\alpha \theta}$
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