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jee advanced
| 2019
Solutions for all the questions from jee advanced
of year 2019
EXAM
board examination
iit jee
jee advanced
jee main
neet
rtb
YEAR
All
2019
SUBJECT
30
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class 12
JEE Advanced
if
$a_{n=α−βα−β}$
where
$α$
and
$β$
are roots of equation
$x_{2}−x−1=0$
and
$b_{n}=a_{n+1}+a_{n−1}$
then
class 12
JEE Advanced
Let
$L_{1}$
and
$L_{2}$
denote the lines
$r=i+λ(−i^+2j^ +2k^),λ∈R$
and
$r=μ(2i^−j^ +2k^),μ∈R$
Respectively if
$L_{3}$
is a line which is perpendicular to both
$L_{1}$
and
$L_{2}$
and cuts both of them, then which of the following options describe(s)
$L_{3}$
?
class 12
JEE Advanced
N dielectics are introduced in series in a capacitor of thickness D. Each dielectric have width d=D/N & dielectric constant of
$m_{th}$
dielectric is given by
$K_{m}=K(1+m/N).$
[Ngtgt
$10_{3}$
, Area of plates =A] . Net capacitance is given by
$αDln2Kϵ_{0}A $
. find value of
$α$
class 12
JEE Advanced
Conducting wire of parabolic shape, initially
$y=x_{2}$
is moving with velocity
$V=v_{0}i^$
in a non-uniform magnetic field
$B=B_{0}(1+(Ly )_{β})k^$
as shown in figure. If
$V_{0},B_{0}L$
and B are +ve constant
$Δϕ$
is potential difference develop between the ends of wire, then correct statements (s) is/are
class 12
JEE Advanced
$M=[sin_{4}θ1+cos_{2}θ −1−sin_{2}θcos_{4}θ ]=αI+βM_{−1}$
Where
$α=α(θ)$
and
$β=β(θ)$
ar real numbers and I is an identity matric of
$2×2$
if
$α_{∗}=$
min of set
${α(θ):θ∈[0.2π)}$
and
$β_{∗}=$
min of set
${β(θ):θ∈[0.2π)}$
Then value of
$α_{∗}+β_{∗}$
is
class 12
JEE Advanced
With reference to aqua regia, choose the correct option(s)
class 12
JEE Advanced
if (a,d) denotes an A.P with first term a and common different d. if the A.P formed by intersection of three A.P's given (1,3), (2,5),and (3,7) is a new A.P (A,D). Then the value of A+D is
class 12
JEE Advanced
In the mac. Arthur process of extraction
$Au→NaCN,QRwithY→extracted Z$
class 12
JEE Advanced
What
$ω=1$
be a cube root of unity. Then minimum value of set
${∣∣∣ a+bω+cω_{2}∣∣∣ _{2}$
, a,b,c are distinct non zero intergers) equals
class 12
JEE Advanced
A sample of
$._{19}K_{40}$
disintegrates into two nuclei Ca & Ar with decay constant
$λ_{Ca}=4.5×10_{−10}S_{−1}$
and
$λ_{Ar}=0.5×10_{−10}S_{−1}$
respectively. The time after which 99% of
$._{19}K_{40}$
gets decayed is
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jee advanced
| 2019
Solutions for all the questions from jee advanced
of year 2019
30
JEE MAINS
Crash Course
●LIVE
Classes starting
15
^{th}
June 2021
30 Students | 90 Days | 24x7 Video Doubt Support
₹16000
₹8000
KNOW MORE
30
JEE MAINS
Crash Course
●LIVE
Classes starting
15
^{th}
June 2021
30 Students | 90 Days | 24x7 Video Doubt Support
₹16000
₹8000
KNOW MORE
Filter Results
EXAM
board examination
iit jee
jee advanced
jee main
neet
rtb
YEAR
All
2019
SUBJECT
class 12
JEE Advanced
if
$a_{n=α−βα−β}$
where
$α$
and
$β$
are roots of equation
$x_{2}−x−1=0$
and
$b_{n}=a_{n+1}+a_{n−1}$
then
class 12
JEE Advanced
Let
$L_{1}$
and
$L_{2}$
denote the lines
$r=i+λ(−i^+2j^ +2k^),λ∈R$
and
$r=μ(2i^−j^ +2k^),μ∈R$
Respectively if
$L_{3}$
is a line which is perpendicular to both
$L_{1}$
and
$L_{2}$
and cuts both of them, then which of the following options describe(s)
$L_{3}$
?
class 12
JEE Advanced
N dielectics are introduced in series in a capacitor of thickness D. Each dielectric have width d=D/N & dielectric constant of
$m_{th}$
dielectric is given by
$K_{m}=K(1+m/N).$
[Ngtgt
$10_{3}$
, Area of plates =A] . Net capacitance is given by
$αDln2Kϵ_{0}A $
. find value of
$α$
class 12
JEE Advanced
Conducting wire of parabolic shape, initially
$y=x_{2}$
is moving with velocity
$V=v_{0}i^$
in a non-uniform magnetic field
$B=B_{0}(1+(Ly )_{β})k^$
as shown in figure. If
$V_{0},B_{0}L$
and B are +ve constant
$Δϕ$
is potential difference develop between the ends of wire, then correct statements (s) is/are
class 12
JEE Advanced
$M=[sin_{4}θ1+cos_{2}θ −1−sin_{2}θcos_{4}θ ]=αI+βM_{−1}$
Where
$α=α(θ)$
and
$β=β(θ)$
ar real numbers and I is an identity matric of
$2×2$
if
$α_{∗}=$
min of set
${α(θ):θ∈[0.2π)}$
and
$β_{∗}=$
min of set
${β(θ):θ∈[0.2π)}$
Then value of
$α_{∗}+β_{∗}$
is
class 12
JEE Advanced
With reference to aqua regia, choose the correct option(s)
class 12
JEE Advanced
if (a,d) denotes an A.P with first term a and common different d. if the A.P formed by intersection of three A.P's given (1,3), (2,5),and (3,7) is a new A.P (A,D). Then the value of A+D is
class 12
JEE Advanced
In the mac. Arthur process of extraction
$Au→NaCN,QRwithY→extracted Z$
class 12
JEE Advanced
What
$ω=1$
be a cube root of unity. Then minimum value of set
${∣∣∣ a+bω+cω_{2}∣∣∣ _{2}$
, a,b,c are distinct non zero intergers) equals
class 12
JEE Advanced
A sample of
$._{19}K_{40}$
disintegrates into two nuclei Ca & Ar with decay constant
$λ_{Ca}=4.5×10_{−10}S_{−1}$
and
$λ_{Ar}=0.5×10_{−10}S_{−1}$
respectively. The time after which 99% of
$._{19}K_{40}$
gets decayed is
1
2
3
4
5
6
7
8
9
10
Previous
page
1 / 2
You're on page
1
page
2
Next
page
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