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

Let $$\theta \in\left(0, \frac{\pi}{4}\right)$$ and $$t_{1}=(\tan \theta)^{\tan \theta}, t_{2}=(\tan \theta)^{\cot \theta}, t_{3}=(\cot \theta)^{\tan \theta}$$ and $$t_{4}=(\cot \theta)^{\cot \theta}$$, then

A
$$t_{1}>t_{2}>t_{3}>t_{4}$$
B
$$t_{4}>t_{3}>t_{1}>t_{2}$$
C
$$t_{3}>t_{1}>t_{2}>t_{4}$$
D
$$t_{2}>t_{3}>t_{1}>t_{4}$$
2
IIT-JEE 2006
MCQ (Single Correct Answer)
+3
-1

There are $$n$$ urns each containing $$n+1$$ balls such that the $$i^{\text {th }}$$ urn contains $$i$$ white balls and $$(n+1-i)$$ red balls. Let $$u_{i}$$ be the event of selecting $$i^{\text {th }}$$ urn, $$i =1,2,3 \ldots, n$$ and $$w$$ denotes the event of getting a white ball.

If $$\mathrm{P}\left(u_{i}\right) \propto i$$, where $$i=1,2,3, \ldots n$$, then $$\lim_\limits{n \rightarrow \infty} \mathrm{P}(w)$$ is equal to:

A
1
B
$$\frac{2}{3}$$
C
$$\frac{3}{4}$$
D
$$\frac{1}{4}$$
3
IIT-JEE 2006
MCQ (Single Correct Answer)
+3
-1

There are $$n$$ urns each containing $$n+1$$ balls such that the $$i^{\text {th }}$$ urn contains $$i$$ white balls and $$(n+1-i)$$ red balls. Let $$u_{i}$$ be the event of selecting $$i^{\text {th }}$$ urn, $$i =1,2,3 \ldots, n$$ and $$w$$ denotes the event of getting a white ball.

If $$\mathrm{P}\left(u_{i}\right)=c$$, where $$c$$ is a constant then $$\mathrm{P}\left(u_{n} / w\right)$$ is equal to:

A
$$\frac{2}{n+1}$$
B
$$\frac{1}{n+1}$$
C
$$\frac{n}{n+1}$$
D
$$\frac{1}{2}$$
4
IIT-JEE 2006
MCQ (Single Correct Answer)
+3
-1

There are $$n$$ urns each containing $$n+1$$ balls such that the $$i^{\text {th }}$$ urn contains $$i$$ white balls and $$(n+1-i)$$ red balls. Let $$u_{i}$$ be the event of selecting $$i^{\text {th }}$$ urn, $$i =1,2,3 \ldots, n$$ and $$w$$ denotes the event of getting a white ball.

If $$n$$ is even and E denotes the event of choosing even numbered urn $$\left(\mathrm{P}\left(u_{i}\right)=\frac{1}{n}\right)$$, then the value of $$\mathrm{P}(w / \mathrm{E})$$ is :

A
$$\frac{n+2}{2 n+1}$$
B
$$\frac{n+2}{2(n+1)}$$
C
$$\frac{n}{n+1}$$
D
$$\frac{1}{n+1}$$

JEE Advanced Papers

All year-wise previous year question papers