Other Physics · JEE Main previous year questions

2006 8 questions

1. Q442006 · 29 Apr 2006 · Shift 1

   A player caught a cricket ball of mass $150g$ moving at a rate of $20m/s$. If the catching process is completed in $0.1s$, the force of the blow exerted by the ball on the hand of the player is equal to

   1. A.$150N$
   2. B.$3N$
   3. C.$30N$
   4. D.$300N$
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   Answer: C

2. Q632006 · 29 Apr 2006 · Shift 1

   Two insulating plates are both uniformly charged in such a way that the potential difference between them is $V_2-V_1=20\mathrm{V}$. (i.e., plate 2 is at a higher potential). The plates are separated by $d=0.1\mathrm{m}$ and can be treated as infinitely large. An electron is released from rest on the inner surface of plate 1. What is its speed when it hits plate 2? $(e=1.6\times 10^{-19}\mathrm{C},m_e=9.11\times 10^{-31}\mathrm{kg})$

   1. A.$2.65\times 10^{6}m/s$
   2. B.$7.02\times 10^{12}m/s$
   3. C.$1.87\times 10^{6}m/s$
   4. D.$32\times 10^{-19}m/s$
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   Answer: A

3. Q642006 · 29 Apr 2006 · Shift 1

   A thermocouple is made from two metals, Antimony and Bismuth. If one junction of the couple is kept hot and the other is kept cold, then, an electric current will

   1. A.flow from Antimony to Bismuth at the hot junction
   2. B.flow from Bismuth to Antimony at the cold junction
   3. C.not flow through the thermocouple
   4. D.flow from Antimony to Bismuth at the cold junction
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   Answer: D

4. Q672006 · 29 Apr 2006 · Shift 1

   An electric bulb is rated 220 volt - 100 watt. The power consumed by it when operated on 110 volt will be

   1. A.$75\mathrm{watt}$
   2. B.$40\mathrm{watt}$
   3. C.$25\mathrm{Watt}$
   4. D.$50\mathrm{Watt}$
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   Answer: C

5. Q682006 · 29 Apr 2006 · Shift 1
   
   1. A.$0.33\mathrm{A}$
   2. B.$0.5\mathrm{A}$
   3. C.$0.67\mathrm{A}$
   4. D.$0.17\mathrm{A}$
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   Answer: B

6. Q752006 · 29 Apr 2006 · Shift 1

   The flux linked with a coil at any instant '$t$' is given by $\varphi =10t^2-50t+250$ The induced $emf$ at $t=3\mathrm{s}$ is

   1. A.$-190\mathrm{V}$
   2. B.$-10\mathrm{V}$
   3. C.$10\mathrm{V}$
   4. D.$190\mathrm{V}$
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   Answer: B

7. Q822006 · 29 Apr 2006 · Shift 1

   A solid which is not transparent to visible light and whose conductivity increases with temperature is formed by

   1. A.Ionic bonding
   2. B.Covalent bonding
   3. C.Vander Waals bonding
   4. D.Metallic bonding
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   Answer: B

8. Q882006 · 29 Apr 2006 · Shift 1
   
   1. A.
   2. B.
   3. C.
   4. D.
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   Answer: B