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Recent questions tagged q21
Questions
Questions from:
Find out the angle from the following figure
cbse
class4
olympiad
math
t5
q21
asked
Oct 21, 2017
by
priyanka.c
0
answers
In a common emitter transistor amplifier the audio signal voltage across the collector is $3 \Omega$. If current gain is 100 and the base resistance is $2 k \Omega$ , the voltage and power gain of the amplifier is :
neet
2017
physics
past paper
t1
q21
asked
Oct 11, 2017
by
meena.p
0
answers
Work function of a meta surface is $\phi = 1.5 \;eV$. If a light of wavelength $5000Å$ falls on it then the maximum K.E of ejection electron will be -
neet
1998
physics
past paper
t1
q21
asked
Oct 9, 2017
by
priyanka.c
0
answers
Find the value of following expression and express the answer in international number system <br> 21344 + 9246382 =
cbse
class4
olympiad
math
t4
q21
asked
Oct 3, 2017
by
priyanka.c
0
answers
Karthik read a book in 25 days. She read 17 pages every day for the first 16 days, and 18 pages everyday for the last 9 days. Which expression do you use to find how many pages Karthik read?
cbse
class4
olympiad
math
t3
q21
asked
Sep 26, 2017
by
priyanka.c
0
answers
Find the HCF by long division method <br> 219, 1321, 2320, 8526
cbse
class4
olympiad
math
t2
q21
asked
Sep 21, 2017
by
priyanka.c
0
answers
The number in which 8 has the greatest place value of the following is
cbse
class4
olympiad
math
t1
q21
asked
Sep 18, 2017
by
priyanka.c
0
answers
Choose the correct option from the following set of clocks 18:33 pm
olympiad
cbse
class3
math
t5
q21
asked
Sep 4, 2017
by
priyanka.c
1
answer
Mother purchased 9 kg of 357 g of sweets and snacks for the occasion. Out of which 6 kg 458 g were consumed. What quantity of sweets and snacks were left?
olympiad
cbse
class3
math
t4
q21
asked
Aug 31, 2017
by
priyanka.c
0
answers
Which number is greater than $\frac{3}{4}$
olympiad
cbse
class3
math
t3
q21
asked
Aug 15, 2017
by
priyanka.c
0
answers
Find odd one from the following
olympiad
cbse
class3
math
t2
q21
asked
Aug 10, 2017
by
priyanka.c
1
answer
There are 50gems chocolate in a ball. Mary eats 4 gems from the ball per day. What is the fraction of gems she eats in 8 days?
olympiad
cbsc
class3
math
t1
q21
asked
Aug 4, 2017
by
priyanka.c
0
answers
In a chamber a uniform magnetic field of $6.5\;G(1G= 10^{-4})$ is maintained . An electron is short into the field with a speed of $4.8 \times 10^{6} m/s$ normal to the field , explain why the path of the electron is a circle Determine the radius of the circular orbit. $(e=1.6 \times 10^{-19} \;C,m_e= 9.1 \times 10^{-31} \;kg)$
cbse
class12
physics
ch-4
sec-b
q21
ncert
medium
asked
Jul 24, 2015
by
meena.p
1
answer
A bar magnet of magnetic moment $1.5\;J/T$ lies aligned with the direction of a uniform magnetic field of $0.22\;T$ What is the amount of work required by an external torque to turn the magnet so as to align its magnetic moment, opposite to the field direction ?
cbse
class12
physics
ch-5
sec-a
q21
ncert
medium
asked
Jul 10, 2015
by
meena.p
1
answer
A wire of resistance $4R$ is bent in the form of a circle. What is the effective resistance between the ends of diameter ?
cbse
class12
physics
ch-3
sec-b
q21
easy
asked
Jun 29, 2015
by
meena.p
1
answer
A dipole moment P is kept in a uniform electric field E. Write the value of the angle between P and E for which the torque experienced by the dipole is (i) minimum (ii) maximum
cbse
class12
physics
ch-1
sec-a
q21
medium
asked
Apr 22, 2015
by
meena.p
1
answer
Find the eccentricity of the hyperbola $9y^2-4x^2=36$.
cbse
class11
math
conic-sections
hyperbola
exemplar
sec-a
easy
q21
asked
Oct 10, 2014
by
sreemathi.v
1
answer
Calculate the weight of a non volatile solute having molecular weight 40,which should be dissolved in 114gm octane to reduce its vapour pressure to 80%.
cbse
class12
chemistry
ch2
solutions
sec-b
medium
additionalproblem
q21
asked
Aug 7, 2014
by
sreemathi.v
1
answer
An element having atomic mass 60 has face-centered cubic unit cells.The edge length of the unit cell is 400pm.Find the density of the element.
cbse
class12
chemistry
ch1
states-of-matter
solid-state
sec-b
difficult
additionalproblem
q21
asked
Aug 1, 2014
by
sreemathi.v
1
answer
Ravi obtained 70 and 75 marks in first two unit tests. Find the minimum marks he should get in third test to have an average of at least 60 marks.
cbse
math
class11
ch6
linear-inequalities
exercise6-1
q21
asked
Jul 28, 2014
by
meena.p
1
answer
Seven persons are to be seated in a row.The probability that two particular persons sit next to each other is
cbse
math
class11
ch16
probability
exemplar
q21
sec-b
medium
asked
Jul 9, 2014
by
sreemathi.v
1
answer
Following are the marks obtained , out of 100 by two students Ravi and Hashina in 10 tests: Who is more intelligent and who is more consistent?
cbse
math
class11
ch15
statistics
exemplar
q21
sec-c
difficult
asked
Jul 7, 2014
by
meena.p
1
answer
The coefficient of $r^{th}$ and $(r+1)^{th}$ terms in the expansion of $(1+x)^{20}$ are in the ratio 1 : 2 then $r=$
cbse
math
class11
ch8
binomial-theorem
additionalproblem
q21
sec-b
medium
asked
Jun 26, 2014
by
sreemathi.v
1
answer
The coefficient of $x^n$ in the expansion of $(1+x)^{2n}$ and $(1+x)^{2n-1}$ are in the ratio
cbse
math
class11
ch8
binomial-theorem
exemplar
q21
sec-b
medium
asked
Jun 25, 2014
by
sreemathi.v
1
answer
A class has 30 students .We have to form a team of the students including atleast two students and also excluding atleast two students.The number of ways of forming the team is
cbse
math
class11
ch7
permutations-and-combinations
additionalproblem
q21
sec-b
medium
asked
Jun 20, 2014
by
sreemathi.v
1
answer
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