1
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

A body of mass 10 mg is moving with a velocity of 100 ms$$^{-1}$$. The wavelength of de-Broglie wave associated with it would be

($$h=6.63\times10^{-34}$$ Js)

A
$$6.63\times10^{-37}$$ m
B
$$6.63\times10^{-31}$$ m
C
$$6.63\times10^{-34}$$ m
D
$$6.63\times10^{-35}$$ m
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Mg$$^{2+}$$ is isoelectronic with

A
Ca$$^{2+}$$
B
Na$$^{+}$$
C
Zn$$^{2+}$$
D
Cu$$^{2+}$$
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