WBJEE question papers with solutions - 2017-2018 StudyChaCha

#1
December 31st, 2013, 05:56 PM
 Unregistered Guest Posts: n/a
WBJEE question papers with solutions

Guys, can you provide me the WBJEE question papers with solutions???
#2
January 2nd, 2014, 12:47 PM
 Super Moderator Join Date: Jun 2013 Posts: 42,987
Re: WBJEE question papers with solutions

Yes sure, here I am uploading a pdf file having the WBJEE question papers with solutions, you can use this question paper in your studies, and there are objective types of the questions available. I have taken following questions from the attachment:

1. At given instant of time, two radioactive elements P and Q have the same number of atoms. It is also known that the mean-life time of P is the same as the half-life time of Q. then which of the following is correct? A. The decay rate of P is larger than that of Q B. The decay rate of Q is larger than that of P C. The decay constant of P is less than that of Q D. The decay rate of P and Q will be same initially

3. An object is moving away from a vertical concave mirror of focal length 25 m. When the distance of the object is 100 m, the velocity of the object is 5 m/s and it accelerates at the rate of 2 m/s2. The distance of the object from the image after 5 sec is A. 300 m B. 120 m C. 150 m D. 90 m

6. If E = energy, G = gravitational constant, I = impulse and M = mass,the dimension of (GIM2)/E2 are same as that of A. mass B. length C. time D. force

7. A car moving at a speed of 20 km/hr stops by applying brakes after travelling 5m. If the same car is moving at 40 km/hr, the stopping distance after applying brakes will be A. 10m B. 20m C. 5m D. 1m

Remaining questions are in the attachment, please click on it……
Attached Files
 WBJEE question papers with solutions.pdf (753.5 KB, 235 views)
__________________

#3
January 2nd, 2014, 12:52 PM
 Unregistered Guest Posts: n/a
Solved WBJEE Question Papers of Medical

Will you please provide me the Solved WBJEE Question Papers of Medical???
#4
January 3rd, 2014, 10:56 AM
 Super Moderator Join Date: Jun 2013 Posts: 42,987
Re: Solved WBJEE Question Papers of Medical

Yes sure, here I am uploading a pdf file having the Solved WBJEE Question Papers of Medical; you can use this question paper in your studies. There are objective types of the questions available. This is the content of attachment:

1. Bohr's theory of hydrogen atom did not explain fully
A. diameter of H atom B. emission spectra
C. ionisation energy D. the fine structure of even hydrogen spectrum

2. A current loop placed in a non-uniform magnetic field experiences :
A. a force of repulsion B. a force of attraction
C. a torque but not force D. a force and a torque

3. For a heavily doped n-type semi-conductor, Fermi-level lies
A. a little below the conduction band B. a little above the valence band
C. a little inside the valence band D. at the centre of the band gap

4. Which of the following indicates that the galaxies are receding from us ?
A. Neutron Star B. White dwarf C. Black hole D. Red shift

5. What does it represents?
A. AND B. NAND
C. OR D. NOR

6. In a transistor, the relation between α and β is
A. β = α /(1 - α ) B. β = 1/(1 - α ) C. β = α /(1 + α ) D. β = 1 - α

7. In a transistor
A. there is 1 p-n junction B. there are 2 p-n junctions
C. there are 3 p-n junctions D. none of these

8. Germanium is doped with arsenic, what will be the result ?
A. p-type semi-conductor B. n-type semi-conductor
C. intrinsic semi-conductor D. none of these

Remaining questions are in the attachment, please click on it…..
Attached Files
 Solved WBJEE Question Papers of Medical.pdf (125.5 KB, 80 views)
__________________
#5
January 8th, 2014, 01:34 PM
 Unregistered Guest Posts: n/a
WBJEE Papers Solved Papers

Here I am looking for the solved Question paper of West Bengal Joint Entrance Examination (WBJEE), can you please provide me the same???
#6
January 8th, 2014, 04:47 PM
 Super Moderator Join Date: Jun 2013 Posts: 42,987
Re: WBJEE Papers Solved Papers

As you require the solved Question paper of West Bengal Joint Entrance Examination (WBJEE), so here I am sharing the same with you

1. One Kg of copper is drawn into a wire of 1mm diameter and a wire of 2 mm diameter. The resistance of the two wires will be in the ratio
(A) 2 : 1 (B) 1 : 2 (C) 16 : 1 (D) 4 : 1
Ans : (C)

2. An electrical cable having a resistance of 0.2 Ω delivers 10kw at 200V D.C. to a factory. What is the efficiency of transmission?
(A) 65% (B) 75% (C) 85% (D) 95%
Ans : (D)

3. A wire of resistance 5 Ω is drawn out so that its new length is 3 times its original length. What is the reistance of the new wire?
(A) 45 Ω (B) 15 Ω (C) 5/3 Ω (D) 5 Ω
Ans : (A)

4. Two identical cells each of emf E and internal resistance r are connected in parallel with an external resistance R. To get maximum power developed across R, the value of R is
(A) R = r/2 (B) R = r (C) R = r/3 (D) R = 2r
Ans : (A)

Rest of the Questions are attached in below file which is free of cost
Attached Files
 WBJEEE Solved Question paper 1.pdf (800.5 KB, 69 views) WBJEEE Solved Question paper 2.pdf (946.3 KB, 70 views)
__________________
#7
January 24th, 2014, 03:23 PM
 Unregistered Guest Posts: n/a
WBJEE Previous Year Question Papers

Is there any one to provide me the WBJEE Previous Year Question Papers???
#8
January 24th, 2014, 06:05 PM
 Super Moderator Join Date: Jun 2013 Posts: 42,987
Re: WBJEE Previous Year Question Papers

Yes sure, here I am uploading a pdf file that contains the WBJEE Previous Year Question Papers, there are objective type of the questions available of physics, chemistry and other subjects. This is the content of attachment:

1. A reducing agent A. loses electrons and is reduced. B. gains electrons and is reduced. C. loses electrons and is oxidized. D. gains electrons and is oxidized.

2. (S)-(+)-lactic acid and (R)-(–)-lactic acid are nonsuperposable mirror images of each other. They are called A. diastereomers B. tautomers C. enantiomers D. structural isomers

Arrange the following in decreasing order of reactivity with HCN. HCHO, CH3CHO, CH3COCH3 A. HCHO > CH3CHO > CH3COCH3 B. CH3CHO > HCHO > CH3COCH3 C. CH3COCH3 > CH3CHO > HCHO D. CH3CHO > CH3COCH3 > HCHO=

6. The state of hybridization of the nitrogen atom bonded to hydrogen in hydrazoic acid (N3H) is: A. sp B. sp2 C. sp3 D. none of these

Remaining questions are in the attachment, please click on it………..
Attached Files
 WBJEE Previous Year Question Papers.pdf (749.3 KB, 75 views)
__________________
#9
March 28th, 2014, 07:47 PM
 Unregistered Guest Posts: n/a
WBJEE question papers for medical entrance

Hello, I am looking for West Bengal Joint Entrance Examinations (WBJEE) for medical entrance question papers. Kindly provide it.
#10
March 29th, 2014, 01:03 PM
 Super Moderator Join Date: Jun 2013 Posts: 42,294
Re: WBJEE question papers for medical entrance

Hello, West Bengal Joint Entrance Examinations (WBJEE) is an entrance examination to gain admission to various engineering, medical and pharmacy colleges in West Bengal.

The test consists of papers in Physic, chemistry, mathematics and Biology.

Each paper is for 100 marks and 80% is based on MCQs and 20% is on short type questions.

Experimental investigations show that the intensity of solar radiation is maximum for a wavelength 480 nm in the visible region.
Estimate the surface temperature of sun. Given Wein’s constant b = 2.88 × 10–3 mK.
(A) 4000 K (B) 6000 K (C) 8000 K (D) 106 K
Ans : (B)
Hints : λm × T = b
λm = 480 nm
9
3
10 480
10 88 . 2 T −

×
× =
λ
=
m
b
= 6000 K
2. The temperature of an ideal gas is increased from 120 K to 480 K. If at 120 K, the root mean square speed of gas molecules is v,
then at 480 K it will be
(A) 4v (B) 2v (C)
2
v
(D)
4
v
Ans : (B)
Hints :
2
1
2
1
T
T
V
V =
2
1
4
1
480
120
V
V
2
1 = = − =
V2 = 2v
3. Two mirrors at an angle θº produce 5 images of a point. The number of images produced when θ is decreased to θº – 30º is
(A) 9 (B) 10 (C) 11 (D) 12
Ans : (C)
Hints : No. of images = 5
∴ θ = 60º
New angle = θ – 30º = 30º. No of images = 11 1
º 30
º 360 =

to complete this paper & to get other papers, download the attachment, given below:-
Attached Files
 WBJEE Sample Paper 1.pdf (773.3 KB, 58 views) WBJEE Sample Paper 2.pdf (1.04 MB, 53 views) WBJEE Sample Paper 3.pdf (147.2 KB, 64 views)
__________________