1
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following physical quantities does not affect the resistance of a cylindrical resistor?
A
The current through it.
B
Its length.
C
The resistivity of the material used in the resistor.
D
The area of cross-section of the cylinder.
2
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is the correct relation between frequency f and angular frequency $$\omega$$ ?
A
f = $$\pi$$$$\omega$$
B
$$\omega$$ = 2$$\pi$$f
C
f = 2$$\omega$$/$$\pi$$
D
f = 2$$\pi$$$$\omega$$
3
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
A Kelvin thermometer and a Fahrenheit thermometer both give the same regarding for a certain sample. What would be the corresponding reading in a Celsius thermometer?
A
574
B
301
C
273
D
232
4
NDA 2017 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
If the potential difference applied to an X-ray tube is doubled while keeping the separation between the filament and the target as same, what will happen to the cut-off wavelength?
A
Will remain same
B
Will be doubled
C
Will be halved
D
Will be four times of the original wavelength
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