MHT CET 2019 2nd May Morning Shift | MHT CET Year Wise Previous Years Questions

Which of the following combinations of 7 identical capacitors each of $2 \mu \mathrm{~F}$ gives a resultant capacitance of $10 / 11 \mu \mathrm{~F}$ ?

3 in parallel and 4 in series

2 in parallel and 5 in series

4 in parallel and 3 in series

5 in parallel and 2 in series

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

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Bohr model is applied to a particle of mass ' $m$ ' and charge ' $q$ ' is moving in a plane under the influence of a transverse magnetic field ' $B$ '. The energy of the charged particle in the $n$th level will be ( $h=$ Planck's constant)

$2 n h q B / \pi \mathrm{m}$

$n h q B / 2 \pi \mathrm{~m}$

$n h q B / 4 \pi \mathrm{~m}$

$n h q B / \pi \mathrm{m}$

MHT CET 2019 2nd May Morning Shift

MCQ (Single Correct Answer)

-0

In moving coil galvanometer, strong horse shoe magnet of concave shaped pole pieces is used to

increase space for rotation of coil

reduce weight of galvanometer

produce magnetic field which is parallel to plane of coil at any position

make magnetic induction weak at the centre.