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The pressure inside a soap bubble is 3 Pa more than atmospheric pressure. Surface tension is 0.03 N/m. Find radius.
Which of the following is/are true about blood pressure in the human body?
I. This pressure is much greater in arteries than in veins.
II....
Which of the following pair of microorganisms is correct?
I. Spirogyra – Algae
II. Amoeba – Fungi
Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjace...
What will be the initial velocity of a car which covers a distance of 200 km in 5 hours, having an acceleration of 4 km/hr and final velocity as 50 km/hr.
A photon of energy 3 eV collides with a metal having a work function of 2 eV. Kinetic energy of the emitted electron is:
Before X-ray examination (coloured X-ray) of the stomach, patients are given suitable salt of barium because
The Periodic Law stating that ‘the properties of elements are the periodic function of their atomic masses’ was given by
A 60 W lightbulb is connected to a 120V power source. What is the resistance of the bulb?
What is the chemical formula of common salt?
