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A stone is projectef from level ground s...

A stone is projectef from level ground such that its horizontal and vertical components of initial velocity are `u_x=10(m)/(s)` and `u_y=20(m)/(s)` respectively. Then the angle between velocity vector of stone one second before and one second after it attains maximum height is:

A

Evidence of de Broglie.s waves associated with electrons

B

Evidence of particle nature of electrons

C

Evidence of --Ve charge on electrons

D

Evidence of specific charge of electrons

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AAKASH SERIES-DUAL NATURE OF RADIATION AND MATTER-EXERCISE-I
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  7. Consider a photon of continuous X-ray and a photon of characteristic X...

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  8. When target potential in the X-ray tube is increased

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  9. The X-rays beam coming from an X-ray tube will be

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  10. Molybdenum is used as a target for production of x-rays, because it is

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  11. Assertio Wavelength of charachteristic X-rays is given by (1)/(lambd...

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  12. Process of biogas production is

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  14. Which of the following statement is correct ?

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  19. If the potential difference applied to tube is doubled and the separat...

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