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

When a large bubble rises from bottom of a water lake to its surface, then its radius doubles. If the atmospheric pressure is equal to the pressure of height $H$ of a certain water column, then the depth of lake will be

A
2H
B
H
C
7H
D
4H
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A block of mass $M$ is pulled along a smooth horizontal surface with a rope of mass $m$ by force $F$. The acceleration of the block will be

A
$\frac{F}{(M-m)}$
B
$\frac{F}{(M+m)}$
C
$\frac{F}{m}$
D
$\frac{F}{M}$
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In the network shown cell E has internal resistance $r$ and the galvanometer shows zero deflection. If the cell is replaced by a new cell of emf $2 E$ and internal resistance $3 r$ keeping everything else identical, then

MHT CET 2019 3rd May Morning Shift Physics - Current Electricity Question 2 English

A
The galvanometer will show deflection of 10 divisions.
B
The galvanometer show zero deflection,
C
Current will flow from $B$ to $A$.
D
Current will flow from $A$ to $B$.
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In hydrogen emission spectrum, for any series, the principal quantum number is $n$. Corresponding maximum wavelength $\lambda$ is ( $R=$ Rydberg's constant)

A
$\frac{R(2 n+1)}{n^2(n+1)}$
B
$\frac{n^2(n+1)^2}{R(2 n+1)}$
C
$\frac{n^2(n+1)}{R(2 n+1)}$
D
$\frac{R(2 n+1)}{n^2(n+1)^2}$
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