Recent questions tagged easy

The face value of 8 in the number 608,234 is

asked Feb 25, 2016 by pady_1

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Arrange in descending order: MDC,MCD,MXC,MCX

asked Feb 25, 2016 by pady_1

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Arrange the following in ascending order: CL,XC, CXX,XCIV,LVIII

asked Feb 25, 2016 by pady_1

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A beam of light coverage to a point P. A lens is placed in the path of the convergent beam 12 cm from P. At what point does the beam converge if the lens is a concave lens of focal length 16 cm ?

asked Feb 17, 2016 by meena.p

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A beam of light coverage to a point P. A lens is placed in the path of the convergent beam 12 cm from P. At what point does the beam converge if the lens is to be 20 cm ?

asked Feb 17, 2016 by meena.p

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A prism is made of glass of unknown refractive index. A parallel beam of light is incident on a face of the prism. By rotating the prism the minimum angle of deviation is measured to be $40 ^{\circ}$ What is the refractive index of the prism ?

asked Feb 15, 2016 by meena.p

1 answer

Choose the missing term : R, U, X, A, D, ?

asked Dec 31, 2015 by pady_1

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Joseph Schooling swims slower than Ryan Murphy but faster than Michael Phelps Who swims the fastest?

asked Dec 31, 2015 by pady_1

1 answer

A watch shows 10:30 as the time. If the MINUTE hand points to SOUTH , in what direction does the HOUR hand point?

asked Dec 31, 2015 by pady_1

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How many lines of symmetry does a circle have?

asked Dec 31, 2015 by pady_1

1 answer

Which of the following letters have only one line of symmetry?

asked Dec 31, 2015 by pady_1

1 answer

Which of the following letters have both horizontal and vertical line of symmetry?

asked Dec 31, 2015 by pady_1

2 answers

Find the breadth of a football field, whose area is 5000 sq m and length is 250 m.

asked Dec 31, 2015 by pady_1

1 answer

Find the cost of painting square board of side 44 cm at the rate of Rs.7 per sq. cm.

asked Dec 31, 2015 by pady_1

1 answer

Find the volume of a cube of side 9 cm in cubic meters.

asked Dec 31, 2015 by pady_1

1 answer

Warren bought two rolls of tape. The first roll had 7.2 metres of tape and the second roll had 7.45 metres of tape. How many metres of tape did Warren buy in all?

asked Dec 31, 2015 by pady_1

1 answer

On a school trip, a class travels 2.1 kilometres by train and 1.8 kilometres by bus. How far did the class travel?

asked Dec 31, 2015 by pady_1

1 answer

Edwin had 7.8 grams of pepper. Then he used 4.3 grams of the pepper to make some scrambled eggs. How much pepper does Edwin have left?

asked Dec 31, 2015 by pady_1

1 answer

A carpenter bought a piece of wood that was 4.8 centimetres long. Then he sawed 3.72 centimetres off the end. How long is the piece of wood now?

asked Dec 31, 2015 by pady_1

1 answer

Brian mixed 2.06 grams of salt into a pot of soup he was cooking. Before he served the soup, Brian added 5.07 grams of salt. How much salt did Brian put into the soup in all?

asked Dec 31, 2015 by pady_1

1 answer

Vince bought 0.95 kilograms of apples and 0.51 kilograms of oranges. How much fruit did he buy in all?

asked Dec 31, 2015 by pady_1

1 answer

On Friday night, John ate half a pizza for dinner and had the remaining half pizza left over. On Saturday, he ate one-third of what was left and ate the rest on Sunday. How much pizza did John eat on Sunday? Simplify your answer as a proper fraction or as a whole or mixed number.

asked Dec 31, 2015 by pady_1

1 answer

The compound which on reaction with aqueous nitrous acid at low temperature produces an aity nitroso amine is

asked Dec 15, 2015 by meena.p

1 answer

Nitrosoamines $(R-N-N=0)$ are soluble in water on heating them with concentrated $H_2SO_4$ they give secondary amines This reaction is called

asked Dec 14, 2015 by meena.p

1 answer

In the presence of an acid , hydrolysis of methyl cyanide produces

asked Dec 14, 2015 by meena.p

1 answer

In the chemical reaction $CH_3CH_2NH_2+CHCl_3 +3KOH \to (A)+(B)+3H_2O$ the compounds (A) and (B) are respectively

asked Dec 12, 2015 by meena.p

1 answer

Flurobenzene and Phenal

asked Dec 12, 2015 by meena.p

1 answer

Electrolytic reduction of nitrobenzene is weakly acidic medium gives,

asked Dec 12, 2015 by meena.p

1 answer

The compound obtained by heating a mixture of ethyl amine and chloroform with ethaloic potassium hydroxide (KOH) is

asked Dec 12, 2015 by meena.p

1 answer

For carbylamine reaction ,we need hot alcoholic $KOH$ and

asked Dec 11, 2015 by meena.p

1 answer

Why do we prefer the along alnico for making permanent magnets.

asked Aug 4, 2015 by meena.p

1 answer

Why do we make use of steel for making permanent magnets.

asked Aug 4, 2015 by meena.p

1 answer

Why do use soft iron to make electromagnets?

asked Aug 4, 2015 by meena.p

1 answer

What is the relation between relative permeability and susceptibility

asked Aug 4, 2015 by meena.p

1 answer

What is unit of magnetic permeability ?

asked Aug 3, 2015 by meena.p

1 answer

A proton has spin and magnetic moment just like an electron . Why then its effect is neglected in magnetism of materials?

asked Aug 3, 2015 by meena.p

1 answer

A 100 turn rectangular coil $ABCD$ is hung from one arm of a balance(as shown in the figure) . A mass 500 g is added to the other arm to balance the weight of the coil . A current $4.9\;A$ passes through the coil and a constant magnetic field of $0.2 \;T$ acting inward (in xz plane) is switched on such that only arm CDof length 1 cm lies in the field . Hoe much additional mass 'm' must be added to regain the balance ?

asked Jul 31, 2015 by meena.p

1 answer

A multi range voltmeter can be constructed by using a galvanometer circuit as shown in the figure. We want to construct a voltmeter that can measure $2V,20V$ and $200\;V$ using a galvanometer of resistance $10\Omega$ and that produces maximum deflection for current of $1mA$ Find $R_1,R_2$ and $R_3$ that have to be used

asked Jul 31, 2015 by meena.p

1 answer

A current carrying loop consists of 3 identical quarter circles of radius R, lying in the positive quadrants of $x-y ,y-z$ and $z-x$ planes , with their centers at the origin joined together . Find the direction and magnitude to $\overrightarrow{B}$ at the origin .

asked Jul 30, 2015 by meena.p

1 answer

A changed particle enters an environment of strong and non- uniform magnetic field varying from point to point both in magnitude and direction , and comes out of it following a complicated trajectory would its final speed equal the initial speed, if it suffered no collision with the environment ?

asked Jul 27, 2015 by meena.p

1 answer

A closely ward solenoid $80\;cm$ long has $ 5$ layers of winding of 400 turns each.The diameter of the solenoid is $1.8 \;cm$ . If the current carried is $8.0\;A$ , What will be the direction of B B inside the solenoid near its center .

asked Jul 23, 2015 by meena.p

1 answer

Two long and parallel straight wires A and B carrying currents of $8.0\;A$ and $5.0 \;A$ same direction are separated by a distance of $4.0\;cm$ . What is the direction and nature of the force on a 10 cm section of wire A?

asked Jul 23, 2015 by meena.p

1 answer

Two long and parallel straight wires A and B carrying currents of $8.0\;A$ and $5.0 \;A$ same direction are separated by a distance of $4.0\;cm$ . What is the direction of the magnetic field on a 10 cm section of wire A?

asked Jul 23, 2015 by meena.p

1 answer

Two long and parallel straight wires A and B carrying currents of $8.0\;A$ and $5.0 \;A$ same direction are separated by a distance of $4.0\;cm$ . Estimate the force on a $10\;cm$ section of wire A?

asked Jul 23, 2015 by meena.p

1 answer

A $3.0 \;cm$ wire carrying of $10\;A$ is placed inside a solenoid perpendicular to its axis . The magnitude field inside the solenoid is given to be $0.27 \;T$. What is the direction of magnetic force on the wire ?

asked Jul 23, 2015 by meena.p

1 answer

What is the direction of the magnetic force per unit length on a wire carrying a current $8\;A$ and making an angle of $30^{\circ}$ with the direction of a uniform magnetic field of $0.15\;T$?

asked Jul 23, 2015 by meena.p

1 answer

What is the magnitude of magnetic force per unit length on a wire carrying a current $8\;A$ and making an angle of $30^{\circ}$ with the direction of a uniform magnetic field of $0.15\;T$?

asked Jul 23, 2015 by meena.p

1 answer

A horizontal overhead power line carries a current of $90A$ in east to west direction . What is the direction of the magnetic field due to current $1.5 m$ below the line .

asked Jul 22, 2015 by meena.p

1 answer

A long straight wire carries a current of $35\;A$ what is the direction of the magnetic field?

asked Jul 22, 2015 by meena.p

1 answer

A circular coil of wire consisting of 100 times of radius $8.0\;cm$ carries a current of $0.40\;A$ What is the direction of the magnetic field B at the center of the coil ?

asked Jul 22, 2015 by meena.p

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