A block of mass 0.50 kg is moving with a speed of 2.00 ms⁻¹ on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The […]
Find the fundamental frequency of a closed pipe if the length of air column is 42m. (Speed of sound in air=332 m/sec)
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(a) 2 Hz (b) 4 Hz (c) 7 Hz (d) […]
If the length of a stretched string is shortened by 4% and the tension is increased by 44%, then the ratio of the final and initial fundamental frequencies is
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(a) (2:1) (b) […]
If two slits in Young’s experiment are 0.4 mm apart and fringe width on a screen 200 cm away is 2 mm, the wavelength of light illuminating the slits is
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(a) 500 […]
In Young’s double slit experiment, when wavelength used is 6000Å and the screen is 40 cm from the slits, the fringes are 0.012 cm wide. What is the distance between the slits?
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For a diatomic gas charge in internal energy for unit charge in temperature for constant pressure and constant volume is U₁ and U₂ respectively. U₁ : U₂ is
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(a) (5:3) (b) (3:5) […]
Initial pressure and volume of a gas are P and 800cc. If the final volume is 100cc and γ=5/3, then the final pressure equals to
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(a) P (b) 8P (c) 16P (d) […]
The speed of light in media M₁ and M₂ are 1.5×10⁸ ms⁻¹ and 2×10⁸ ms⁻¹ respectively. A ray travels from medium M₁ to the medium M₂ with an angle of incidence θ. The ray suffers […]
A magnifying glass of focal length 5 cm is used to view an object by a person whose smallest distance of distinct vision is 25 cm. If he holds the glass close to eye, then […]
The approxiamate ratio of nuclear mass densities of ₇₉Au¹⁹⁷ and ₄₇ Ag¹⁰⁷ nuclei is
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(a) (197:107) (b) (47:79) (c) (79:47) (d) (1:1)
Correct Answer:
(1:1)
Explanation:
No explanation available. Be the first […]
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