KCET 2025 | Atomic Structure Question 2 | Chemistry

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 $\left(\mathrm{h}=6.626 \times 10^{-34} \mathrm{Js}\right)$

$3.0 \times 10^{-24} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$

$4.0 \times 10^{-26} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$

$3.5 \times 10^{-25} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$

$5.2 \times 10^{-29} \mathrm{~m}^{-2} \mathrm{~s}^{-1}$

KCET 2024

MCQ (Single Correct Answer)

-0

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

$\mathrm{0~ J}$

$-8.72 \times 10^{-18} \mathrm{~J}$

$-4.58 \times 10^{-18} \mathrm{~J}$

$-0.545 \times 10^{-18} \mathrm{~J}$

KCET 2023

MCQ (Single Correct Answer)

-0

The number of protons, neutrons and electrons in the ion $${ }_{16}^{32} \mathrm{~S}^{2-}$$ respectively are

$$16,18,16$$

$$16,16,18$$

$$18,16,16$$

$$16,16,16$$

KCET 2022

MCQ (Single Correct Answer)

-0

If wavelength of photon is $$2.2 \times 10^{-11} \mathrm{~m}$$ and $$h=6.6 \times 10^{-34} \mathrm{~J} \mathrm{~s}$$, then momentum of photon

$$3.33 \times 10^{-22} \mathrm{~kg} \mathrm{~ms}^{-1}$$

$$1.452 \times 10^{-44} \mathrm{~kg} \mathrm{~ms}^{-1}$$

$$6.89 \times 10^{+43} \mathrm{~kg} \mathrm{~ms}^{-1}$$

$$3 \times 10^{-23} \mathrm{~kg} \mathrm{~ms}^{-1}$$

Previous Next

Questions Asked from MCQ (Single Correct Answer)

KCET 2025 (2) KCET 2024 (1) KCET 2023 (1) KCET 2022 (1) KCET 2021 (1) KCET 2020 (1) KCET 2019 (1) KCET 2018 (1) KCET 2017 (1)

KCET Subjects