A string is fastened tightly between two walls 24cm apart. The wavelength of the second…
A string is fastened tightly between two walls 24cm apart. The wavelength of the second overtone is A.…
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A gas with initial volume of 2 X 10-6m3 is allowed to expand to six…
A gas with initial volume of 2 X 10-6m3 is allowed to expand to six times its initial…
The thermometric substance of an absolute thermometer is
The thermometric substance of an absolute thermometer is A. alcohol B. mercury C. helium D. platinum Correct Answer:…
A plane sound wave of frequency 85.5Hz and velocity 342ms-1 is reflected from a vertical…
A plane sound wave of frequency 85.5Hz and velocity 342ms-1 is reflected from a vertical wall. At what…
The pressure of a given mass of a gas changes from 300Nm-2 to 120Nm-2 while…
The pressure of a given mass of a gas changes from 300Nm-2 to 120Nm-2 while the temperature drops…
The driving mirror of a car has a radius of curvature of 1m. A vehicle…
The driving mirror of a car has a radius of curvature of 1m. A vehicle behind the car…
The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens…
The terrestrial telescope has one extra lens more than the astronomical telescope. The extra lens is for A.…
A ray of light strikes a plane mirror at an angle of incidence of 35°….
A ray of light strikes a plane mirror at an angle of incidence of 35°. If the mirror…
I. The earth is not spherical but elliptical in shape II. Variation in latitude and…
I. The earth is not spherical but elliptical in shape II. Variation in latitude and longitude III. Rotation…
The efficiency of a machine is always less than 100% because the
The efficiency of a machine is always less than 100% because the A. work output is always greater…