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A wave enters to water form air. In air frequency, wavelength intensity and velocity n 1,λ1,I 1 and v 1 respectively In water the corresponding quantities are n 2,λ2,I 2 and v 2 respectively, then A wave enters to water form air. In air frequency I 1 and v 1 respectively In water the corresponding [...]

The ratio of de-Broglie wavelength of molecules of hydrogen and helium in two gas jars kept separately at temperature 27 o C and 127 o C respectively is The ratio of de-Broglie wavelength of molecules of hydrogen and helium in two gas jars kept separately at temperature 27 o C and 127 o C respectively [...]

The phase difference between two waves represented by y1​ = 10^−6sin [100t+50x​+0.5]m y2​ = 10^−6cos [100t+50x​]m where x is expressed in metres and t is expressed in seconds is approximately The phase difference between two waves represented by y1​ = 10^−6sin [100t+50x​+0.5]m y2​ = 10^−6cos [100t+50x​]m where x is expressed in metres and t is [...]

The ratio of de – Broglie wavelength of alpha- particle to that of a proton being subjected to the same magnetic field so that the radii of their path are equal to each other assuming the field induction vector vec(B) is perpendicular to the velocity vectors of the alpha – particle and the proton is [...]

The wavelength K α ​ X−rays produced by an X−ray tube is 0.76 A. The atomic number of anticathode material is: The wavelength K α ​ X−rays produced by an X−ray tube is 0.76 A. The atomic number of anticathode material is: August 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

The transverse wave represented by the equation y = 4 sin (π6) sin (3 x−15 t) has The transverse wave represented by the equation y = 4 sin (π6) sin (3 x−15 t) has August 25, 2020 Category: Chapter 16 - Waves , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video [...]

The frequency of sinusoidal wave, 0.40 cos (2000 t + 0.80) would be 0.40 cos (2000 t + 0.80) would be The frequency of sinusoidal wave August 25, 2020 Category: Chapter 16 - Waves , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,

An electron in Bohr’s hydrogen atom has an energy of −3.4 eV. The angular momentum of the electron is : An electron in Bohr's hydrogen atom has an energy of −3.4 eV. The angular momentum of the electron is : August 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

To decrease the cut-off wavelength of continuous X-ray by 25%, the potential difference across the X-ray tube the potential difference across the X-ray tube To decrease the cut-off wavelength of continuous X-ray by 25% August 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In a nuclear reaction, alpha+”_(7)N^(14)toX+p When nitrogen atoms are bombarded by 7.7 Me V alpha- particles, protons are ejected with a kinetic energy of 5.5 MeV. The Q- value of the reaction is -1.26 MeV (a) Find the atomic mass of X in amu, identify the element X. (b) Find the angle phi between the [...]