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Recent questions tagged q27
ASK
A carnot engine having an efficiency of $\large\frac{1}{10}$ as heat engine, is used as a refrigerator. If the work done on the system is 10 J, the amount of energv absorbed from the reservoir at lower temperature is :
neet
2017
physics
past paper
t1
q27
asked
Oct 27, 2017
by
meena.p
0
answers
Round off the number 676 to nearest tens place
cbse
class4
olympiad
math
t5
q27
asked
Oct 21, 2017
by
priyanka.c
0
answers
O is the centre of an equilateral triangle ABC $F_1, F_2, F_3$ are three forces acting along the sides AB, BC and AC as shown in fig.What should be the magnitude of $F_3$ so that total torque about O is zero :
neet
1998
physics
past paper
t1
q27
asked
Oct 10, 2017
by
priyanka.c
0
answers
The length of a rectangular wooden board is thrice its width. If the width of the board is 120 cm, find the cost of framing it at the rate of Rs 5 for 20cm.
cbse
class4
olympiad
math
t4
q27
asked
Oct 3, 2017
by
priyanka.c
0
answers
How many ten's are there in the number 2008?
cbse
class4
olympiad
math
t3
q27
asked
Sep 26, 2017
by
priyanka.c
0
answers
What number will come in the missing fraction to make it equal <br> $\frac{1}{5} = \frac{2}{10} = \frac{3}{15} = . ..... . = \frac{5}{25}$
cbse
class4
olympiad
math
t2
q27
asked
Sep 21, 2017
by
priyanka.c
0
answers
The GCD of 6, 12, 24 is
cbse
class4
olympiad
math
t1
q27
asked
Sep 18, 2017
by
priyanka.c
0
answers
Count the number of days from $28^{th}$ feb 2012 to $27^{th}$ feb 2013
olympiad
cbse
class3
math
t5
q27
asked
Sep 1, 2017
by
priyanka.c
0
answers
If you subtract me from the lowest four digit number, you get the high three digit number. Find the number
olympiad
cbse
class3
math
t4
q27
asked
Sep 1, 2017
by
priyanka.c
0
answers
Find out the number of minutes for one day and 12 hours
olympiad
cbse
class3
math
t3
q27
asked
Aug 15, 2017
by
priyanka.c
0
answers
Complete the series below <br> 2, 3, 5, 7, _____,13, 17, 19,____, 29
olympiad
cbse
class3
math
t2
q27
asked
Aug 7, 2017
by
priyanka.c
0
answers
In a certain year $9^{th} $ of july falls on Tuesday. Which day does $16^{th}$ of august falls on?
olympiad
cbsc
class3
math
t1
q27
asked
Aug 4, 2017
by
priyanka.c
0
answers
For a circular coil of radius R and N turns carrying current $I$, the magnitude of the magnetic field at a point on its axis at a distance x from its center is given by $B= \large\frac{\mu_0 I R^2N}{2(x^2+R^2)^{3/2}}$ What will be the magnetic field at the center .
cbse
class12
physics
ch-4
sec-b
q27
ncert
medium
asked
Jul 27, 2015
by
meena.p
1
answer
A short magnet has a magnetic moments of $0.48\;J/T$. give the direction and magnitude of the magnetic field produced by the magnet of a distance of $10\; cm$ from the center of the magnet on the axis
cbse
class12
physics
ch-5
sec-a
q27
ncert
medium
asked
Jul 13, 2015
by
meena.p
1
answer
$V-I$ graph for a metallic wire at two different temperatures $T_1$ and $T_2$ are shown in the figure. Which of the two temperature is higher and why ?
cbse
class12
physics
ch-3
sec-a
q27
medium
asked
Jun 29, 2015
by
meena.p
1
answer
Electrostatic forces are much stronger than, gravitational force. Give one example.
cbse
class12
physics
ch-1
sec-a
q27
medium
asked
Apr 22, 2015
by
meena.p
1
answer
Find the equation of a circle passing through the point $(7,3)$ having radius $3$ units and whose centre lies on the line $y=x-1$.
cbse
class11
math
conic-sections
circle
exemplar
sec-c
medium
q27
asked
Oct 14, 2014
by
sreemathi.v
1
answer
The Freezing point of ether was lowered by $0.60^{\large\circ}$C on dissolving 2.0gm of phenol in 100g of ether.Calculate the molar mass of phenol and comment on the result.Given $K_f$(ether)=$5.12Kkg mol^{-1}$
cbse
class12
chemistry
ch2
solutions
sec-b
medium
additionalproblem
q27
asked
Aug 7, 2014
by
sreemathi.v
1
answer
The pycnometric density of sodium chloride crystal is $2.165\times 10^3kg m^{-3}$ while its X-ray density is $2.178\times 10^3kg m^{-3}$.The fraction of the unoccupied sites in sodium chloride crystal is
cbse
class12
chemistry
ch1
states-of-matter
solid-state
sec-b
medium
additionalproblem
q27
asked
Aug 1, 2014
by
sreemathi.v
1
answer
Which of the following statements regarding boron is not correct ?
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
easy
q27
asked
Jul 25, 2014
by
thanvigandhi_1
1
answer
If the probabilities for A to fail in an examination is 0.2 and that for B is 0.3.Then the probability that either A or B fails is
cbse
math
class11
ch16
probability
exemplar
q27
sec-a
easy
asked
Jul 9, 2014
by
sreemathi.v
1
answer
Following are the marks obtained by $9$ students in a mathematics test: $50,69,20,33,53,39,40,65,59$ The mean deviation from the median is :
cbse
math
class11
ch15
statistics
exemplar
q27
sec-b
medium
asked
Jul 8, 2014
by
meena.p
1
answer
Choose the correct answer from the given four options. If the line $ \large\frac{x}{a}$$+ \large\frac{y}{b}$$=1$ passes through the points (2, –3) and (4, –5), then (a, b ) is
cbse
math
class11
ch10
straight-lines
exemplar
objective-type-question
sec-a
medium
q27
asked
Jul 3, 2014
by
thanvigandhi_1
1
answer
If the $r^{th}$ term in the expansion of $(\large\frac{x}{3}-\frac{2}{x^2})^{10}$ contains $x^4$ then $r$ is equal to
cbse
math
class11
ch8
binomial-theorem
additionalproblem
q27
sec-b
medium
asked
Jun 26, 2014
by
sreemathi.v
1
answer
In the expansion of $(x^2-\large\frac{1}{x^2})^{16}$ the value of the constant term is ________
cbse
math
class11
ch8
binomial-theorem
exemplar
q27
sec-b
medium
asked
Jun 25, 2014
by
sreemathi.v
1
answer
Total number of ways in which 15 identical blanks can be distributed among 4 persons so that each of them gets atleast two blankets is equal to
cbse
math
class11
ch7
permutations-and-combinations
additionalproblem
q27
sec-b
medium
asked
Jun 20, 2014
by
sreemathi.v
1
answer
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