The product is equal to :
Option: 1
Option: 2
Option: 3
Option: 4
Sum of an infinite GP
If a is the first term and r is the common ratio of a G.P. Then,
is the sum to infinite terms of the G.P.
Now,
A particle is moving along the x- axis with its coordinate with time 't' given by . Another particle is moving along the y-axis with its coordinate as a function of time given by
At
s, the speed of the second particle measured in the frame of the first particle is given by
. Then
(in m/s) is ____________.
Option: 1 580
Option: 2 700
Option: 3 100
Option: 4 300
At time t= 1 s
So the value of v is 580
View Full Answer(1)The magnifying power of a telescope with tube length is
. What is the focal length (in cm) of its eye piece?
Option: 1 30
Option: 2 40
Option: 3 10
Option: 4 20
So the correct answer is given in option 3.
View Full Answer(1)The dimension of stopping potential in photoelectric effect in units of Planck's constant 'h', speed of light 'c' and Gravitational constant 'G' and ampere A is :
Option: 1
Option: 2
Option: 3
Option: 4
Let
Now,
So,
From here we will get: p-q=1---------(1)
2p+3q+r=2----------(2)
-p-2q-r=-3----------(3)
s=-1-----------(4)
From equation 1, 2,3 and 4 we will get: p=0,q=-1, r=5 and s=-1
So,
The critical angle (in degree)of a medium for a specific wavelength, if the medium has relative permitivity and relative permeability
for this wavelength, will be :
Option: 1 15
Option: 2 30
Option: 3 45
Option: 4 60
and
By using snells law
So the correct option is 2.
View Full Answer(1)
Consider two solid sphers of radii and masses M1 and M2, respectively. The gravitational field due to sphere
and
are shown. The value of
is:
Option: 1
Option: 2
Option: 3
Option: 4
Considering Case 2 and case 1, one by one
and using
R-Radius of sphere
So the correct option is 2.
View Full Answer(1)The major product in the following sequence of reaction is :
Option: 1
Option: 2
Option: 3
Option: 4
Therefore, Option(3) is correct.
View Full Answer(1)Which of the following compounds is likely to show both Frenkel abnd Schottky defects in its crystalline form ?
Option: 1 AgBr
Option: 2 CsCl
Option: 3 KBr
Option: 4 ZnS
1
View Full Answer(2)Among the reactions (a) - (d), the reaction(s) that does / do not occur in the blast furnace during the extraction of iron is / are :
(a) (b)
(c)
(d)
Option: 1 (C) and (D)
Option:2 (A)
Option: 3 (A) and (D)
Option: 4 (D)
The following reactions do not occur in the blast furnace:
C)
D)
Therefore, Option(1) is correct.
View Full Answer(1)The correct order of the calculated spin-only magnetic moments of complexes (A) to (D) is : (A) (B)
(C)
(D)
Option: 1
Option: 2
Option: 3
Option: 4
As we have learnt,
contains
which has a
configuration having
and
contains
which has a
configuration. In a weak ligand field, it has
and hence has
contains
which has a
configuration. In a strong ligand field, these electrons get paired up and hence
and
contains
which has a
configuration. These electrons get paired in the presence of strong ligand like
and hence,
and correspondingly
.
Therefore, the correct order of spin only magnetic moment of the complexes is
Therefore, Option(4) is correct.
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