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1) What will be the effect on the horizontal range of a projectile when its initial speed is doubled keeping its angle of projection same.
2) Plot a graph between kinetic energy and potential energy for an elastic spring with displacement.
Chemistry
Which out of electron, proton, alpha particle has the maximum de Broglie wavelength provided they all have the same velocity?
Range=v2sin2A/g
Now,
v is doubled and angle remain same
=(2V)2sin2A/g
=4v2sin2a/g
so range will become double
1 AS wavelwngth=h/mv
so whose mass will be bigger so wavelength will be less
so less mass is of electron is less so wavelength will be more for electron
Range = u2sin 2θ / g
If u is doubled, range becomes 4 times.
For graph, consult a book.
Chemistry - Wavelength = h/mv
thus, it''s inversely propertional to mass. Electron has least mass and thus maximum wavelength .
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