1
IIT-JEE 2006
MCQ (Single Correct Answer)
+3
-0.75

In a screw gauge, the zero of main scale coincides with the fifth division of circular scale in figure (i).The circular division of screw gauge is 50. It moves 0.5 mm on main scale in one rotation.The diameter of the ball in figure (ii) is

A
2.25 mm
B
2.20 mm
C
1.20 mm
D
1.25 mm
2
IIT-JEE 2005 Screening
MCQ (Single Correct Answer)
+2
-0.5
Which of the following set have different dimensions?
A
Pressure, Young's modulus, Stress
B
EMF, Potential difference, Electric potential
C
Heat, Work done, Energy
D
Dipole moment, Electric flux, Electric field
3
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+2
-0.5
Pressure depends on distance as, $$P = {\alpha \over \beta }\exp \left( { - {{\alpha z} \over {k\theta }}} \right)$$, where $$\alpha$$, $$\beta$$ are constants, z in distance, k is Boltzman's constant and $$\theta$$ is temperature. The dimention of $$\beta$$ are
A
[M0L0T0]
B
[M-1L-1T-1]
C
[M0L2T0]
D
[M-1L1T2]
4
IIT-JEE 2004 Screening
MCQ (Single Correct Answer)
+2
-0.5
A wire of length $$l = 6 \pm 0.06$$ cm and $$r = 0.5 \pm 0.005$$ cm and mass $$m = 0.3 \pm 0.003$$ gm. Maximum percentage error in density is
A
4
B
2
C
1
D
6.8
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