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1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Which of the following represents de Broglie equation?
A
$\lambda = \dfrac{h}{\sqrt{mv}}$
B
$\lambda = \dfrac{h}{mv}$
C
$\lambda = \dfrac{h}{mp}$
D
$\lambda = \dfrac{\mu}{p}$
2
KCET 2025
MCQ (Single Correct Answer)
+1
-0

The number of orbitals associated with ' N ' shell of an atom is

A
16
B
32
C
3
D
4
3
KCET 2025
MCQ (Single Correct Answer)
+1
-0

According to the Heisenberg's Uncertainty principle, the value of $\Delta \mathrm{b} . \Delta \mathrm{x}$ for an object whose mass is $10^{-6} \mathrm{~kg}$ is $\left(\mathrm{h}=6.626 \times 10^{-34} \mathrm{Js}\right)$

A
$3.0 \times 10^{-24} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$
B
$4.0 \times 10^{-26} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$
C
$3.5 \times 10^{-25} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$
D
$5.2 \times 10^{-29} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The energy associated with first orbit of $\mathrm{He}^{+}$ is

A
$\mathrm{0~ J}$
B
$-8.72 \times 10^{-18} \mathrm{~J}$
C
$-4.58 \times 10^{-18} \mathrm{~J}$
D
$-0.545 \times 10^{-18} \mathrm{~J}$
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