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Recent questions tagged q44
Questions
A thin prism having refracting angle $10^{\circ}$ is made of glass of refractive index $1.42$ . This prism is combined with another thin prism of glass of refractive index $1.7$. This combination produces dispersion without deviation. The refracting angle of second prism should be :
neet
2017
physics
past paper
t1
q44
asked
Oct 31, 2017
by
meena.p
0
answers
A rigid rod is placed against the wall as shown in figure. When its velocity of lower end is $10 \;ms^{-1}$ and its base makes an angle $\alpha = 60^{\circ}$ with horizontal, then the vertical velocity of its end B will be :
neet
1998
physics
past paper
t1
q44
asked
Oct 10, 2017
by
priyanka.c
0
answers
A uniform magnetic field of $3000\;G$ is established along the positive z- direction . A rectangular loop of sides $10\;cm$ and $5\;cm$carries a current of $12\;A$. What is the torque on the loop in the fig? What is the force in this case? Does state correspond to equilibrium ?
cbse
class12
physics
ch-4
sec-b
q44
ncert
medium
asked
Jul 28, 2015
by
meena.p
1
answer
A resistance R is connected across a cell of emf e and internal resistance r. A potentio meter now measures the potential difference between the terminals of the cell as V. Write an expression for r in terms of e, V and R.
cbse
class12
physics
ch-3
sec-a
q44
easy
asked
Jun 30, 2015
by
meena.p
1
answer
Is electric flux a scalar or a vector quantity ? Write electric flux as a scalar product of two vectors .
cbse
class12
physics
ch-1
sec-a
q44
medium
asked
Apr 24, 2015
by
meena.p
1
answer
The equation of the ellipse having foci $(0,1),(0,-1)$ and minor axis of length $\sqrt 5$ is ____________
cbse
class11
math
conic-sections
ellipse
exemplar
sec-a
medium
q44
asked
Oct 16, 2014
by
sreemathi.v
1
answer
What concentration of nitrogen should be present in a glass of water at room temperature.Assume a temperature of $25^{\large\circ}C$,a total pressure of atmosphere and mole fraction of nitrogen in air of 0.78.[$K_H$ for nitrogen =$8.42\times 10^{-7}$M/mm Hg]
cbse
class12
chemistry
ch2
solutions
sec-b
medium
additionalproblem
q44
asked
Aug 8, 2014
by
sreemathi.v
1
answer
The sum of the squares of the deviations of the values of the variable is _______ when taken about their arithmetic mean.
cbse
math
class11
ch15
statistics
exemplar
q44
sec-a
easy
asked
Jul 9, 2014
by
meena.p
1
answer
Fill in the blank for the the following : Equations of the lines through the point $(3, 2)$ and making an angle of $ 45^{\circ}$ with the line $x-2y=3 $ are _______.
cbse
class11
ch10
straight-lines
exemplar
sec-a
medium
q44
asked
Jul 8, 2014
by
thanvigandhi_1
1
answer
There are 5 letters and 5 different envelopes.The number of ways in which all the letters can be put in wrong envelope is
cbse
math
class11
ch7
permutations-and-combinations
additionalproblem
q44
sec-b
medium
asked
Jun 20, 2014
by
sreemathi.v
1
answer
The number of different words that can be formed from the letters of the word INTERMEDIATE.Such that two vowels never come together is ________
cbse
math
class11
ch7
permutations-and-combinations
exercise7-3
exemplar
q44
sec-b
medium
asked
May 16, 2014
by
sreemathi.v
2
answers
The value of $\cot(\large\frac{\pi}{4}+$$\theta).\cot(\large\frac{\pi}{4}$$-\theta)$ is
cbse
math
class11
ch3
trigonometric-functions
exemplar
q44
sec-b
medium
asked
Apr 21, 2014
by
sreemathi.v
1
answer
If $f_k(x) = \large\frac{1}{k}$$(\sin^k x + \cos^k x)$, where $x\in R$ and $k \geq 1$. The $f_4(x) - f_6(x)$ equals
jeemain
math
class12
ch1
relations-and-functions
types
of
functions
jeemain-2014
q44
medium
asked
Apr 6, 2014
by
balaji.thirumalai
1
answer
The sequence of bases on $m-RNA$ molecule, synthesized on the $GCATA$ strand of $DNA$ is
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
medium
q44
asked
Mar 28, 2014
by
thanvigandhi_1
1
answer
Nitro benzene can be prepared from benzene by using a mixture of Conc $H_2SO_4$ and CONC $HNO_3$.In te mixture Nitric acid acts as
jeemain
aipmt
chemistry
nitrogen
organic-chemistry
cbse
class12
unit13
q44
difficult
asked
Mar 26, 2014
by
thanvigandhi_1
1
answer
Identify the reaction that does not take place in blast fumace.
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q44
difficult
asked
Mar 17, 2014
by
meena.p
1
answer
Calculate the standard free energy change for the following reaction \[\] $Zn(s) + Cu^{2+} (aq) \rightarrow Cu(s) + Zn^{2+} (aq)$ \[\] Given that $ \Delta G_f^{\circ}\: for \: Cu^{2+} (aq)\: and \: Zn^{2+} (aq)$ as 65 kJ/mol and -147.2 kJ/mol respectively.
jeemain
physics
thermodynamics
cbse
class11
class12
q44
medium
asked
Mar 16, 2014
by
thanvigandhi_1
1
answer
Polymer formation from monomer starts by
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q44
medium
asked
Mar 10, 2014
by
thanvigandhi_1
1
answer
The highest occupied molecular orbital in HF is
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q44
medium
asked
Mar 6, 2014
by
sreemathi.v
1
answer
In which of the following compounds do the bonds have the largest percentage of ionic character?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
ionic-or-electrovalent-bond
q44
easy
asked
Mar 5, 2014
by
sreemathi.v
1
answer
The major product formed in the reaction given below is
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
amines
q44
difficult
asked
Mar 3, 2014
by
sreemathi.v
1
answer
The order of reactivitiesof the following alkyl halides for a $Sn^2$ reaction is
jeemain
chemistry
class11
organic-chemistry
q44
medium
basic-organic-chemistry
ch12
asked
Feb 22, 2014
by
meena.p
1
answer
Which reagent would you use to accomplish this transformation?
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q44
medium
asked
Feb 20, 2014
by
sreemathi.v
1
answer
At 400K the root mean square (rms) speed of a gas x (mol weight = 40) is equal to the most probable speed of gas Y at 60K. Find the molecular weight of gas Y
jeemain
chemistry
physical-chemistry
class11
states-of-matter
kinetic-molecular-theory-of-gases
easy
q44
asked
Feb 16, 2014
by
sharmaaparna1
1
answer
Find the equation of parabola whose focus (-4,0) & vertex (0,0)?
jeemain
math
class11
coordinate-geometry-conic-sections
parabola
ch11
q44
easy
asked
Feb 5, 2014
by
sreemathi.v
1
answer
The general solution of the differential equation $\large\frac{dy}{dx}=\frac{1-x}{y}$ is a family of curves which looks most like which of the following?
jeemain
math
class12
ch9
differential-equations
ordinary-differential-equations
q44
difficult
asked
Feb 5, 2014
by
meena.p
1
answer
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