Anil can complete a work in 50 days and Hari can destroy it in 100 days. If both of them are working together, in how many days will the work be completed?
What is to be added to 40% of 900 so that the sum must be equal to 30% of 2600?
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Which is not the application of internet?
Directions: In each of the following questions, a sentence has been given in Active (or Passive) Voice. Out of the four alternatives suggested, select the one that best expresses the same sentence in Passive/ Active Voice.
You will be looked after well.
Find out the Synonym of the following word:
HESITATED
Choose the alternative which best expresses the meaning of underlined idiom/phrase.
Despite the trust bestowed on the minister, he turned out to be a snake in the grass during the revolution.
'Table' is related to 'Wood' in the same way as 'Shirt' is related to:
Directions: Answer the following question by selecting the most appropriate option.
A teacher, after preparing a question paper, checks whether the questions test specific Testing objectives. He is concerned primarily about the question paper's
Emission and absorption is best described by,
A rectangular loop carrying a current I is situated near a long straight wire such that the wire is parallel to the one of the sides of the loop and is in a plane of the loop. If a steady current I is established in wire as shown in figure, the loop will
Long distance radio broadcasts use short-wave bands because
An unpolarised beam of intensity Io is incident on a polarizer and analyser placed in contact. The angle between the transmission axes of the polarizer and the analyser is θ. What is the intensity of light emerging out of the analyser?
Two coherent sources of intensity ratio 100:1 interfere. The ratio of interference at the maxima and minima
A man is trying to start a fire by focusing sunlight on a piece of paper using an equiconvex lens of focal length 10 cm. The diameter of the sun is 1.39 × 109 m and its mean distance from the earth is 1.5 × 1011m. What is the diameter of the sun's image on the paper?
The standard reduction potential values of three metallic cations X, Y, Z are 0.52, -3.03 and -1.18 V respectively. The order of reducing power of the corresponding metals is
Passage II
Accidently chewing of a stray fragment of aluminium foil can cause a sharp tooth pain if the aluminium comes in contact with an amalgam filling. This filling, an alloy of silver, tin and mercury acts as the cathode (of a tiny galvanic cell), the aluminium as anode and saliva (of mouth) serves as electrolyte. When the aluminium and the filling come in contact, an electric current passes from aluminium to the filling, which is sensed by a nerve in the teeth.
Q.
Net reaction taking place when amalgam is in contact with aluminium foil is
Spin quantum number with two spin states of the electron represented by two arrows, ↑ (spin up) and ↓ (spin down) was introduced to account for
0.70 g of mixture (NH4)2 SO4 was boiled with 100 mL of 0.2 N NaOH solution till all the NH3(g) evolved and get dissolved in solution itself. The remaining solution was diluted to 250 mL. 25 mL of this solution was neutralized using 10 mL of a 0.1 N H2SO4 solution. The percentage purity of the (NH4)2 SO sample is
Molar conductivity for a compound AB is 145.0 Scm2mol-1 and for CB is 110.1 Scm2mol-1. Limiting molar conductivity for A+ is 73.5 Scm2mol-1. What is limiting molar conductivity for C+?
Write down a unit vector in XY-plane, making an angle of 30° with the positive direction of x-axis.
The area lying in the first quadrant and bounded by the curve y = x3 , the x – axis and the ordinates at x = - 2 and x = 1 is
There is a group of 80 persons who can drive scooter or car or both. Out of these, 35 can drive scooter and 60 can drive car. Find how many can drive both scooter and car? How many can drive scooter only? How many can drive car only?(Respectively)