There are two conditions which are essential for total internal reflection. 1) The light should travel from a denser medium to a rarer medium. 2) The angle of incidence of light traveling in the denser medium should be greater than the critical .....

Here, total number of marbles, n(S) = 5 + 10 = 15.          Number of yellow marbles, n(Y) = 10. Now, probability of getting yellow marble, P(Y) = n(Y)/n(S)                   .....

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2. Velocity ratio (VR) = Effort distance (E.d.)                                          Load distance (L.d.)         .....

Here, cost of 1 fooball = Rs. 320.          cost of 1 dozen(12) football, CP = 12 x Rs. 320 = Rs. 3840 [ 1 dozen = 12 ] After 1 football lost, remaining football = 12 - 1 = 11.        selling price of .....

Father: Why are you sad, son? Son: I failed in exam. I want to give up my studies. Father: What are you thinking, son? Why are you not preparing to go to school? Son: I am bad at studies. I want to quit school and go to gulf countires to earn .....

The size of our vocal cords and vocal tracts determine the  level of shrillness (loudness or highness) or sharpness of our voice. This level of shrillness or sharpness of our voice is called pitch. Girls' vocal cords (and vocal .....

Hence, the processes which maintain body functions and are necessary for survival are called life processes.  These include nutrition, respiration, circulation, excretion, and reproduction. Organisms obtain energy from food to .....

1. When was televison invented?  - Television was invented in 1925 March 25 by John Logie Baired. 2. Hows the glass made of?

 - Glass is made of by melting silica, sand, soda and limestone at temperature of 17000

3. .....

The methods of avoiding demagnetization are as follows:  (1) By separating magnets. (2) By keeping away from high temperatures. (3) By storing with a keeper. (4) By avoiding electrical currents. (5) By storing in pairs. (6) By .....

please can you tell me which part you don't .....

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Let, small part = Rs. x      Then greater part = Rs. (x + 13) [ according to question] Now, x + x + 13 = 85 or, 2x = 85 - 13 = 72 or, x = 72/2 or, x = 36. And greater part = x + 13 = 36 + 13 = .....

Here,   C.P = Rs. 380, profit percent, P% =  20% We know,       Profit amount = P% of CP                              = 20% of 380   .....

Given ratio might be .....

Silk is produced from the cocoons of the silkworm. Here, the cocoon is the protective casing produced by the larva of a silkworm. Some of the characteristics of the silk  are as follows: 1) Silk is a soft, strong, durable, and shiny fibre .....

(ii) profit percent = ? we know, profit percent = (profit/CP) x 100%                                        = (32/640) x 100%       .....

 We know, 1 quintal = 100 kg   So, cost price of 1 quintal of potato, CP = 100 x 50 = Rs. 5000.   Selling price, SP = Rs. 4500. Now, Discont percent = {(SP - CP)/CP} x 100% Now you can calculate to find required .....

Two uses of water glass are: 1. It is used for making fireproof materials. 2. It is used for making silica gel and silica garden.      (Silica gel packets are used to absorb moisture and keep things .....

Auricles: 1) Auricles refer to the upper chambers of the heart.   2) Auricles act as receptors of deoxygenated blood. 3) Auricles are connected with the inner chambers of the heart. 4) The walls of the auricles are thinner with low blood .....

A base may or may not be soluble in water.  While, an alkali is surely soluble in water.  So, all the bases are not alkalis while, all the alkalis are .....

2 H2O ---> 2H2 + O2 This is an example of a balanced chemical equation of decomposition reaction which is carried out by .....

One of the main tools in our immune system is a group of specialized cells called lymphocytes. Lymphocytes are one of the types of white blood cells which work together to destroy bacteria and viruses. Therefore, the function of lymphocytes is .....

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You may know the fact that Nepal is very rich in natural resources. Nearly 40.36% of the total land of Nepal is covered by the forest. These jungles consist of different species of valuable vegetations and trees. These trees are worth millions .....

Second expression,        27y3 + 1 = (3y)3 + 13 = (3y + 1)(9y2 - 3y  + 1) [ using: a3 + b3 = (a + b)(a2 - ab + .....

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Here, Polulation in the beginning of 2015 AD, P = 2,50,000.                  Population growth, R = 8% per annum.                         .....

क्रियापद आज्ञार्थ र इच्छार्थ भएका धातु पछि एकवचन भए इंपोस् र बहुवचन भए इंयून् थप्ने उदाहरण ः .....

Nepal is an underdeveloped country where most of the areas are remote. These places are not well developed and they lack the infrastructure of development. And, while formulating plans for these areas it is very important to include the local .....

The horrendous economy led to a weak government, the weak military led to fear in Germany. The weak government and German fear made it possible for Adolf Hitler to be elected. And finally, the German anger and Hitler's mindset led to World War .....

प्रश्न अलिक प्रष्ट पठाउनुहोस् त .....

to buy  on an but you gave  leave your mother .....

Here, Final SP = SP after Discount + VAT % of SP after Discount or, Rs. 4400 = SP after Discount + 10/100 x SP after Discount or, SP after discount = 4400 x 10/ 11 = Rs. 4000 Discount amount = MP -  SP after discount  = .....

Here,  Let, VAT amount = 320 or, 10% of SP = 320 or, 10/100  x SP = 320 or, SP = Rs.3200 Again,  SP  = MP - Discount% of MP or, 3200 = MP - 20/100 x MP or, 3200 = 80MP/100 or, MP= Rs.4000. Finally, Discount amount = .....

Here,   SP = MP -  discount % of MP  = 2000 - 10 / 100 x 2000  = 1800   VAT amount = Final Sp - SP = 2034 - 1800 = Rs.234 VAT % = VAT amount / SP x 100%              = 234/ 1800 .....

Here,  CP of 1 topi = Rs.400 Price after tax = CP + Tax% of CP = 400 + 5/100 x 400 = RS.420 Profit % = 150% So, Final SP = Rs.420 + 150% of Rs.420                = Rs.420 + Rs.630     .....

Let sum was P.  From the 1st case,  Compound amount (CA) = Rs.6050  Time(T) = 2 years.

W have formula, Compound amount = P  ( 1 + R / 100)T or, P  ( 1 + R / 100)2 = Rs. 6050..............(i) 2nd case, Compound .....

Here, Growth rate = R = 2% Population at 2065BS =P = 100000  Population at 2066 = PT = ? We know,  PT = P [ 1 + R / 100 ]T      = 100000( 1 + 2 / 100)1      = 102000 Second case, Total .....

Here, Growth rate = R = 2.5% PT = 24895  Initial population = P = ? We know,  PT = P [ 1 + R / 100 ]T or, 24895 = P [ 1 + 2.5 / 100 ]2   or, 24895 = P [ 1 0 2.5 / 100 ]2  or, P = 23695 So, .....

1. The Bible is studied regularly by her.  2. Does he like social media? 3. They do what you told .....

1. No one is immortal, are they? 2. She will have already completed her work. 3. He ordered me to bring him a .....

Since it is a two digit number, Let the number be '10x + y' Such that, 'x' is the digit in 10th place while, y in the one's place. From question, x + y = 9 ==> y = 9 - x   .....(i). And, 10( x + 3) + y = .....

Solution, Frist case, Area of rectangle = L x B = 45m2  ......................i) Second case, L - 3 = B + 1       [ in square, length = breadth] or, L = B + 4 Using, it in equation(i) ( B + 4) x B = 45 or, B2 + .....

Solution: - LHS = √[2 + √{ 2 + √(2 + 2 cos8θ)}]           = √[2 + √{ 2 + √(2 + 2 cos2.4θ)}]           = √[2 .....

रोजगारी देश विकासको साधक हो ।  उमेशः कल्पना के गर्दै छौ आजकल ?  कल्पनाः के गर्नु र उमेश यसो घर .....

You may know that third-class lever has effort in between fulcrum and load. Hence, a spoon is a third class .....

Then, count the number of atoms of each element in both sides i.e. left and right-hand side. Check whether the number of atoms of elements is same or not. Here, on the left-hand side, there are two atoms of hydrogen and two atoms of oxygen. On .....