1
IIT-JEE 1992
MCQ (Single Correct Answer)
+1
-0.25
Which of the following relates to photons both as wave motion and as a stream of particles?
A
Inference
B
E = mc2
C
Diffraction
D
E = hv
2
IIT-JEE 1992
MCQ (Single Correct Answer)
+1
-0.25
Which of the following does not characterise X-rays?
A
The radiation can ionise gases
B
It causes ZnS to fluorescence
C
Deflected by electric and magnetic fields
D
Have wavelengths shorter than ultraviolet rays
3
IIT-JEE 1992
MCQ (Single Correct Answer)
+1
-0.25
The statement that is not correct for the periodic classification of element is
A
The properties of elements are the periodic functions of their atomic numbers
B
Non-metallic elements are lesser in number than metallic elements
C
The first ionisation energies of elements along a period do not vary in a regular manner with increase in atomic number
D
For transition elements the d-subshells are filled with electrons monotonically with increase in atomic number.
4
IIT-JEE 1992
MCQ (Single Correct Answer)
+1
-0.25
The maximum number of hydrogen bonds a water molecule can form is
A
2
B
4
C
3
D
1
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