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State Huygens' Principle. With the help of a suitable diagram, prove Snell's law of refraction using Huygens' Principle.
A circuit having of a 10μF capacitor connected in series with a 25 k resistor with a switchable 100V d.c. supply. When the supply is connected, calculate (a) The time constant,
A bat emits a sound whose frequency is 142 kHz. The speed of sound in air at 20.0°C is 343 m/s. However, the air temperature is 35°C, so the speed of sound is not 343 m/s. Find the
Q. Select the correct trajectory of the ball after it breaks? A ball is being whirled on a string. At the instant shown in figure, the string breaks. choose the correct traject
Why do dead bodies float in water ?
The ratio of specific charge of a proton and an alfa-particle is: (1) 2 : 1 (2) 1 : 2 (3) 1 : 4 (4) 1 : 1 Ans:(1) 2 : 1
Q. What is the longest lasting synthetic periodic element? Answer:- A excellent candidate would be curium 247 (247Cm) which has a half-life of 1.56 × 107 year
What is a Temperature Scales? Fahrenheit, Celsius and Kelvin were scientists who studied how heat and temperature work. The most familiar scale to Americans (until the time tha
nicol prism and its application how to easily undestanding to teach the student
In Thomson's effect we pact with only metallic rod and not with thermocouple as in Peltiers effect and Seebeck's effect. (That's why sometimes it is called as homogeneous thermo el
how many pumps does the heart pumps
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