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IIT-JEE 2010 Paper 2 Offline
Numerical
+3
-0

A large glass slab ($$\mu$$ = 5/3) of thickness 8 cm is placed over a point source of light on a plane surface. It is seen that light emerges out of the top surface of the slab from a circular area of radius R cm. What is the value of R?

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2
IIT-JEE 2010 Paper 2 Offline
Numerical
+3
-0

Image of an object approaching a convex mirror of radius of curvature 20 m along its optical axis is observed to move from $${{25} \over 3}$$ m to $${{50} \over 7}$$ m in 30 s. What is the speed of the object in km per hour?

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3
IIT-JEE 2010 Paper 2 Offline
Numerical
+3
-0

To determine the half-life of a radioactive element, a student plots a graph of $$\ln \left| {{{dN(t)} \over {dt}}} \right|$$ versus t. Here, $${{dN(t)} \over {dt}}$$ is the rate of radioactive decay at time t. If the number of radioactive nuclei of this element decreases by a factor of p after 4.16 years, the value of p is __________.

IIT-JEE 2010 Paper 2 Offline Physics - Atoms and Nuclei Question 18 English

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4
IIT-JEE 2010 Paper 2 Offline
Numerical
+3
-0

At time t = 0, a battery of 10 V is connected across points A and B in the given circuit. If the capacitors have no charge initially, at what time (in seconds) does the voltage across them becomes 4 V? (Take ln5 = 1.6, ln3 = 1.1)

IIT-JEE 2010 Paper 2 Offline Physics - Electromagnetic Induction Question 5 English

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