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De Broglie wavelength (L. de Broglie; 1924) The prediction which particles also have wave characteristics, where the effective wavelength of an element would be inversely propo
Rules to verify how many significant numbers has in a calculated quantity: 1. All nonzero digits are significant. As like 457 cm has three significant values; 0.25 g has two si
A convex lens of refractive index 1.5 has a focal length of 18 cm in air. Measure the change in its focal length when it is immersed in water of refractive index. Distinguish am
Q. Carbon-14, or 14 C, is an isotope of the common 12 6 C, and is used in dating ancient artifacts. What is the composition of its nucleus? Six protons (equal to Z) an
how nicol prism is constructed?
Lens: A transport refractive body bonded by one or two spherical surface known as lens. There are various kinds of lenses. e.g. Double convex Lens Double concave lens
A floater to show surface tension Bend a piece of small copper wire into a ring about 8 cm in diameter. Attach two other pieces of wire rigidly to conflicting sides of the ring
Calorimetry is the act of calculating the heat of chemical reactions or physical changes, or the science of making such measurements. Calorimetry is performed with a calorimeter. T
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 4.40 m above. The brother's outstretched hand catches the keys 1.30 s later. (a) W
A universe is spatially flat, and contains both matter and a cosmological constant. For what value of Om,0 is t0 exactly equal to H0 -1?
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