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Recent questions tagged q42
Questions
A beam cf light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. The beam is reflected back as a spot on a scale placed just above the source L. When the mirror is rotated through a small angle $\theta$, the spot of the light is found to move through a distance $y$ on the scale. The angle $\theta$ is given by :
neet
2017
physics
past paper
t1
q42
asked
Oct 31, 2017
by
meena.p
0
answers
If a source moves perpendicularly from listener then the change in frequency will be
neet
1998
physics
past paper
t1
q42
asked
Oct 10, 2017
by
priyanka.c
0
answers
A uniform magnetic field of $1.5 \;T$ exists a cylindrical region $10.0 \;cm$ its direction parallel to the axis along east to west. A wire carrying current of $7.0 \;A$ in the north to south direction passes through this region . What is the magnitude and direction of the force of the wire if the wire in the N-S direction is lowered from the axis by a distance of $6.0 \;cm$? intended the axis ?
cbse
class12
physics
ch-4
sec-b
q42
ncert
medium
asked
Jul 28, 2015
by
meena.p
1
answer
What kind of ferromagnetic material is used for coating magnetic tapes in casette player or for building memory stores in a modern computer ?
cbse
class12
physics
ch-5
sec-a
q42
ncert
easy
asked
Jul 14, 2015
by
meena.p
1
answer
A current of $1.0\;mA$ s flowing through a potentio meter wire of length $4\;m$ and of resistance $4 \Omega$ ,find the potential gradient of the potentio meter wire .
cbse
class12
physics
ch-3
sec-a
q42
difficult
asked
Jun 30, 2015
by
meena.p
1
answer
A man in an insulted metallic cage does not receive a shock, even when the cage is connected to a high voltage source . Whay ?
cbse
class12
physics
ch-1
sec-a
q42
difficult
asked
Apr 24, 2015
by
meena.p
1
answer
The equation of the circle circumscribing the triangle whose sides are the lines $y=x+2,3y=4x,2y=3x$ is _____________
cbse
class11
math
conic-sections
circle
exemplar
sec-c
medium
q42
asked
Oct 15, 2014
by
sreemathi.v
1
answer
Calculate the molarity and molality of a 15% solutions (by weight) of sulphuric acid density $1.020g cm^{-3}$.(Atomic masses H=10=16S=32 amu)
cbse
class12
chemistry
ch2
solutions
sec-b
medium
additionalproblem
q42
asked
Aug 8, 2014
by
sreemathi.v
1
answer
Match the proposed probability under Column $C_1$ with the appropriate written description under column $C_2$ :
cbse
math
class11
ch16
probability
exemplar
q42
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
If the variance of a data is 121, then the standard deviation of the data is _______
cbse
math
class11
ch15
statistics
exemplar
q42
sec-a
easy
asked
Jul 9, 2014
by
meena.p
1
answer
Fill in the blank for the following : If a, b, c are in A.P., then the straight lines ax + by + c = 0 will always pass through ____.
cbse
math
class11
ch10
straight-lines
exemplar
sec-a
easy
q42
asked
Jul 6, 2014
by
thanvigandhi_1
1
answer
The number of natural numbers less than 1000 in which no two digit are repeated is
cbse
math
class11
ch7
permutations-and-combinations
additionalproblem
q42
sec-b
medium
asked
Jun 20, 2014
by
sreemathi.v
1
answer
$15C_8+15C_9-15C_6-15C_7$=_____
cbse
math
class11
ch7
permutations-and-combinations
exercise7-3
exemplar
q42
sec-a
easy
asked
May 16, 2014
by
sreemathi.v
1
answer
The value of $\tan 3A-\tan 2A-\tan A$ is equal to
cbse
math
class11
ch3
trigonometric-functions
exemplar
q42
sec-c
difficult
asked
Apr 21, 2014
by
sreemathi.v
1
answer
If $g$ is the inverse of a function $f$ and $f'(x) =\large\frac{1}{1+x^5}$, then $g'(x)$ is equal to
jeemain
jeemain-2014
math
q42
medium
asked
Apr 7, 2014
by
meena.p
1
answer
In nucleic acids, the sequence is
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
medium
q42
asked
Mar 28, 2014
by
thanvigandhi_1
1
answer
The reaction of $CHCl_3$ and alcoholic $KOH$ with para toluidine gives
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q42
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Composition of azurite mineral is
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q42
difficult
asked
Mar 17, 2014
by
meena.p
1
answer
Calculate the entropy change when 36 g of liquid water evaporates at $373\: K( \Delta H_{vap} = 40.63\: kJ/mol)$
sat
chemistry
chemical-reactions-and-thermochemistry
jeemain
physics
thermodynamics
cbse
class11
class12
q42
medium
asked
Mar 16, 2014
by
thanvigandhi_1
1
answer
Which of the following is used in paints?
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q42
medium
asked
Mar 7, 2014
by
thanvigandhi_1
1
answer
The species having bond order different from that in CO is
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
homonuclear-diatomic-molecular-bonding
q42
medium
asked
Mar 6, 2014
by
sreemathi.v
1
answer
The geometry of $H_2S$ and its dipole moment are
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
bond-parameters
q42
easy
asked
Mar 5, 2014
by
sreemathi.v
1
answer
A chemist has treated P-chloroaniline with acetic anhydride and wants to separate the amine product from any unreacted amine which reagent used for separation based on the basicities of the two compounds.
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
amines
q42
difficult
asked
Mar 3, 2014
by
sreemathi.v
1
answer
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