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Frequently Asked IIT-JEE Latest Exam Pattern - IIT-JEE Sample Question with Solutions

(#M40027887) IIT-JEE QUESTION 2010 question Keep an EYE

Incandescent bulbs are designed by keeping in mind that the resistance of their filament increases with the
increase in temperature. If at room temperature, 100 W, 60 W and 40 W bulbs have filament resistances
R100, R60 and R40, respectively, the relation between these resistances is

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(#M40027351) IIT-JEE QUESTION Physics Keep an EYE

A cheap wrist watch loses time at the rate of
8.5 second a day. How much time will the
watch be off at the end of a month ?

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(#M40037439) IIT-JEE QUESTION Keep an EYE

: Three machines A, B and C produce respectively 60%, 30% and 10 % of the total number of items of a factory. The percentage of defectives output of these machines are 2%, 3% and 4%, respectively. If an item is selected at random and is found defective. Find the probability that the selected item was produced by machine C.

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(#M40027904) IIT-JEE QUESTION 2010 question Keep an EYE

A piece of ice (heat capacity = 2100 J kg–1 º C–1 and latent heat = 3.36 × 105 J kg–1) of mass m grams is at –
5ºC at atmospheric pressure. It is given 420 J of heat so that the ice starts melting. Finally when the ice–
water mixture is in equilibrium, it is found that 1 gm of ice has melted. Assuming there is no other heat
exchange in the process, the value of m is

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(#M40027862) IIT-JEE QUESTION 2010 question Keep an EYE

In self–reduction, the reducing species is
(A) S (B) O2−
(C) S2− (D) SO2

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(#M40027949) IIT-JEE QUESTION 2012 question Keep an EYE

The colour of light absorbed by an aqueous solution of CuSO4 is :
(A) organge-red (B) blue-green
(C) yellow (D) violet

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(#M40027738) IIT-JEE QUESTION Chemistry Keep an EYE

Extra pure N2 can be obtained by heating
(A) NH3 with CuO (B) NH4NO3
(C) (NH4)2Cr2O7 (D) Ba(N3)2

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(#M40027982) IIT-JEE QUESTION 2012 question Keep an EYE

The shape of XeO2F4 molecule is
option
(A) trigonal bipyramidal
(B) square plannar
(C) tetrahedral
(D) see-saw

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(#M40027753) IIT-JEE QUESTION Physics Keep an EYE

A police car with a siren of frequency 8 kHz is moving with uniform velocity 36 km/hr towards a tall
building which reflects the sound waves. The speed of sound in air is 320 m/s. The frequency of the siren
heard by the car driver is
(A) 8.50 kHz (B) 8.25 kHz
(C) 7.75 kHz (D) 7.50 kHZ

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(#M40028114) IIT-JEE QUESTION 2007 Question Keep an EYE

The number of stereoisomers obtained by bromination of trans-2-butene is
(A) 1 (B) 2
(C) 3 (D) 4

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