1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is the dimensional formula for electric polarisation?

A
$\left[M^P L^{-2} T^1 I^1\right]$
B
$\left[M^{-1} L^{-2} T^1 I^{-1}\right]$
C
$\left[M^P L^{-1} T^{-1} I^1\right]$
D
$\left[M^1 L^{-2} T^1 I^1\right]$
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The phenomenon of interference is based on

A
conservation of momentum
B
quantum nature of light
C
conservation of energy
D
conservation of charge
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A vector $P$ has $X$ and $Y$ components of magnitude 2 units and 4 units respectively. A vector $Q$ along negative $X$-axis has magnitude 6 units. The vector $(\mathbf{Q}-\mathbf{P})$ will be

A
$4(2 \hat{i}-\hat{j})$
B
$-4(2 \hat{\mathbf{i}}-\hat{\mathrm{j}})$
C
$4(2 \hat{i}+\hat{j})$
D
$-4(2 \hat{i}+\hat{j})$
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A magnetizing field of $5000 \mathrm{~A} / \mathrm{m}$ produces a magnetic flux of $4 \times 10^{-5} \mathrm{~Wb}$ in an iron rod of cross-sectional area $0.4 \mathrm{~cm}^2$. The permeabilit of the rod in Wb/A-m, is

A
$4 \times 10^{-6}$
B
$1 \times 10^{-3}$
C
$2 \times 10^{-4}$
D
$3 \times 10^{-5}$
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