1
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

If $$\lambda$$Cu is the wavelength of K$$\alpha$$ X-ray line of copper (atomic number 29) and $$\lambda$$Mo is the wavelength of the K$$\alpha$$ X-ray line of molybdenum (atomic number 42), then the ratio $$\lambda$$Cu/$$\lambda$$Mo is close to

A
1.99
B
2.14
C
0.50
D
0.48
2
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

A metal surface is illuminated by light of two different wavelengths 248 nm and 310 nm. The maximum speeds of the photoelectrons corresponding to these wavelengths are u1 and u2, respectively. If the ratio u1 : u2 = 2 : 1 and hc = 1240 eV nm, the work function of the metal is nearly

A
3.7 eV
B
3.2 eV
C
2.8 eV
D
2.5 eV
3
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

During an experiment with a metre bridge, the galvanometer shall a null point when the jockey is pressed at 40.0 cm using a standard resistance of 90$$\Omega$$, as shown in the figure. The least count of the scale used in the meter bridge is 1 mm. The unknown resistance is

JEE Advanced 2014 Paper 2 Offline Physics - Current Electricity Question 16 English

A
60 $$\pm$$ 0.15 $$\Omega$$
B
135 $$\pm$$ 0.56 $$\Omega$$
C
60 $$\pm$$ 0.25 $$\Omega$$
D
135 $$\pm$$ 0.23 $$\Omega$$
4
JEE Advanced 2014 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1

A wire, which passes through the hole in a small bead, is bent in the form of quarter of a circle. The wire is fixed vertically on ground as shown in the below figure. The bead is released from near the top of the wire and it slides along the wire without friction. As the bead moves from A to B, the force it applies on the wire is

JEE Advanced 2014 Paper 2 Offline Physics - Laws of Motion Question 7 English

A
always radially outwards.
B
always radially inwards.
C
radially outwards initially and radially inwards later.
D
radially inwards initially and radially outwards later.
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