1
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
Bohr Model can explain
A
the spectrum of hydrogen atom only
B
spectrum of an atom or ion containing one electron only
C
the spectrum of the hydrogen molecule
D
the solar spectrum
2
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
The radius of an atomic nucleus is of the order of
A
10-10 cm
B
10-13 cm
C
10-15 cm
D
10-8 cm
3
IIT-JEE 1985
MCQ (Single Correct Answer)
+1
-0.25
Electromangnetic radiation with maximum wavelength is:
A
ultraviolet
B
radiowave
C
X-ray
D
infrared
4
IIT-JEE 1984
MCQ (Single Correct Answer)
+1
-0.25
The increasing order (lowest first) for the values of e/m (charges/mass) for electron (e), proton (p), neutron (n) and alpha particle ($$\alpha$$) is:
A
e, p, n, $$\alpha$$
B
n, p, e, $$\alpha$$
C
n, p, $$\alpha$$, e
D
n, $$\alpha$$, p, e

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