enEnglishguગુજરાતી
GUJCET · Physics · Dual Nature of Radiation and Matter
What is the de-Broglie wavelength of a bullet of mass 0.033 kg travelling at the speed of \(1 km / s ?\left(h=6.6 \times 10^{-34} Js \right)\)
- A \(3 \times 10^{-25} m\)
- B \(2 \times 10^{-35} m\)
- C \(1.1 \times 10^{-32} m\)
- D \(1.7 \times 10^{-35} m\)
Answer & Solution
Correct Answer
(B) \(2 \times 10^{-35} m\)
Step-by-step Solution
Detailed explanation
\( \lambda = \frac{h}{mv} \) \( \lambda = \frac{6.6 \times 10^{-34}}{(0.033)(1000)} \)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- A parallel plate capacitor with air between the plates has a capacitance of 1.0 pF. If the distance between the plates is made doubled and space between them is filled with dielectric substance, the capacitance becomes 2.0 pF. Then the value of dielectric constant of dielectric substance is ___________.GUJCET 2026 Hard
- A molecule of a substance has a permanent electric dipole moment of magnitude \(10^{-29} C m\). 2 mole of this substance is polarised (at low temperature) by applying a strong electrostatic fleld of magnitude \(10^6 Vm ^{-1}\). What should be potential energy of its ? (1 mole of substance contains \(6 \times 10^{23}\) molecules.)GUJCET 2022 Easy
- What is the de-Broglie wavelength associated with an electron moving with a speed of \(6.4 \times\) \(10^{6} \mathrm{~m} / \mathrm{s}^{-1}\) ?
\(\left(m_{e}=9.11 \times 10^{-31} \mathrm{~kg}, h=6.63 \times 10^{-34} \mathrm{Js}\right)\)GUJCET 2022 Medium - At a place on Earth, the vertical component of Earth's magnetic field is \(\sqrt{3}\) times its horizontal component. The angle of dip at this place is ________.GUJCET 2015 Easy
- The magnetic field due to a current carrying circular loop of radius 6 cm at a point on the axis at a distance of 8 cm from the centre is \(216 \mu J\) Then magnetic field at the centre of the ring is \(\mu T\).GUJCET 2013 Medium
- A ray coming from an object which is situated at \(O\) distance in the air and falls on a spherical glass surface ( \(n=1.5\) ) Then the distance of the image will be ________ . \(R\) is the radius of curvature of a spherical glass.GUJCET 2024 Easy
More PYQs from GUJCET
- How \(t_{2 g}^4 e_g^0\) configuration is possible for \(d^4\) ion during crystal Field splitting in Octahedral complex ?GUJCET 2023 Easy
- A circle of radius '\(a\)' has charge density given by \(\lambda=\lambda_e \cos ^2 \theta\) on its circumference. What will be the total charge on the circle.GUJCET 2008 Medium
- An electrical dipole coincides on \(z\)-axis and its midpoint is on origin of the coordinate system. The electric field at an axial point at a distance \(z\) from origin is \(\overrightarrow{ E }(z)\) and electric field at an equatorial point at a distance \(y\) from origin is \(\overrightarrow{ E }(y)\).
Here \(z=y \gg a\)
so \(\left|\frac{\overrightarrow{ E }(z)}{\overrightarrow{ E }(y)}\right|=\) ________.GUJCET 2007 Medium - If \(y=100 e^{2 x}+200 e^{-2 x}\) and \(\frac{d^2 y}{d x^2}=a y\) then, \(a=\) ____________GUJCET 2022 Easy
- The primary valency and secondary valency of central metal ion and the no. of total ions produced in aqueous solution for \(K \left[ Co ( OX )_2\left( NH _3\right)_2\right]\) complex respectively is _____.GUJCET 2019 Hard
- Snake venom antibody is the antibody prepared against snake venom is the example of which type of immunisation?GUJCET 2026 Easy