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प्र: Which of the following is not a transverse wave? 1818 0

उत्तर : 3. "Sound waves"
व्याख्या :
Answer: C) Sound waves Explanation: Light and Radio waves are both different frequency/wavelengths of electromagnetic radiation, which consists of two components electric and magnetic of perpendicular, transverse waves. Sound, on the other hand, is a longitudinal wave which oscillates parallel to it's medium (back and forth instead of up and down).

प्र: Which liquid is the most viscous? 1816 0

उत्तर : 4. "Oil"
व्याख्या :
Answer: D) Oil Explanation: Here Oil is the most viscous liquid. The liquid with the most intermolecular force is high viscous. viscosity is how smoothly a liquid flows and how hardly the liquid flows it is highly viscous.

प्र: The calendar for the year 1988 is same as which upcoming year ? 1814 0

उत्तर : 3. "2016"
व्याख्या :
Answer: C) 2016 Explanation: We already know that the calendar after a leap year repeats again after 28 years. Here year 1988 is a Leap year, then the same calendar will be in the year = 1988 + 28 = 2016.

प्र: If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ? 1814 0

उत्तर : 3. "18.33 %"
व्याख्या :
Answer: C) 18.33 % Explanation: We know that I = PTR/100 11 = (2x30xR)/100 R = 18.333 %

प्र: What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop? 1814 0

उत्तर : 4. "5gR"
व्याख्या :
Answer: D) D Explanation: To complete the vertical loop, the minimum speed required at the lowest point = 5gR.

प्र: Simple interest on a certain sum at 7% per annum for 4 years is Rs. 2415. What will be the compound interest on the same principal at 4% per annum in two years? 1811 0

उत्तर : 1. "Rs. 704"
व्याख्या :
Answer: A) Rs. 704 Explanation: We know that, S.I. = PTR100⇒ P = S.I x 100T x RAnd also,C.I = P1 + R100n- 1 From given data, P = Rs. 8625 Now, C.I = 86251+41002-1= 862526252-1= 8625676625-1= 8625 x 51625C.I = Rs. 703.80

प्र: What is the gram formula mass of Li2SO4? 1811 0

उत्तर : 2. "109.9446"
व्याख्या :
Answer: B) 109.9446 Explanation: The term gram formula mass is synonymous with molecular mass. So, to get this, we must add molar mass of all the elements in this compound. Given compound is Lithium Sulphate - Li2SO4 Elemental calculation :: Li - Lithium - 6.941 - 2 - 13.88200 %S - Sulfur - 32.065 - 1 - 32.065 %O - Oxygen - 15.9994 - 4 - 63.9976 % Now, total = 12.6264 + 29.1647 + 58.2090 = 109.9446 Hence, the gram formula mass of Li2SO4 = 109.9446.

प्र: Train K crosses a pole in 30 seconds and train L crosses the same pole in one minute and 20 seconds. The length of train K is three-fourths the length of train L. What is the ratio of the speed of train K to that of train L ? 1811 0

उत्तर : 2. "2 : 1"
व्याख्या :
Answer: B) 2 : 1 Explanation: Given that train K crosses a pole in 30 seconds and train L crosses the same pole in one minute and 15 seconds. Let the length of train K be Lk and that of train L be Ll given that Lk = 3/4 Ll As the train K and L crosses the pole in 30 seconds and 80 seconds respectively, => Speed of train K = sk = Lk/30 Speed of train L = sl = Ll/80 Lk = 3/4 Ll => sk = 3/4 Ll/(30) = Ll/40 Ratio of their speeds = sk : sl = Ll/40 : Ll/80 => 1/40 : 1/80 = 2 : 1

प्र: Which of the following is not a transverse wave? 1818 0

प्र: Which liquid is the most viscous? 1816 0

उत्तर : 4. "Oil"
व्याख्या :
Answer: D) Oil Explanation: Here Oil is the most viscous liquid. The liquid with the most intermolecular force is high viscous. viscosity is how smoothly a liquid flows and how hardly the liquid flows it is highly viscous.

प्र: The calendar for the year 1988 is same as which upcoming year ? 1814 0

उत्तर : 3. "2016"
व्याख्या :
Answer: C) 2016 Explanation: We already know that the calendar after a leap year repeats again after 28 years. Here year 1988 is a Leap year, then the same calendar will be in the year = 1988 + 28 = 2016.

प्र: If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ? 1814 0

उत्तर : 3. "18.33 %"
व्याख्या :
Answer: C) 18.33 % Explanation: We know that I = PTR/100 11 = (2x30xR)/100 R = 18.333 %

प्र: What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop? 1814 0

उत्तर : 4. "5gR"
व्याख्या :
Answer: D) D Explanation: To complete the vertical loop, the minimum speed required at the lowest point = 5gR.

प्र: Simple interest on a certain sum at 7% per annum for 4 years is Rs. 2415. What will be the compound interest on the same principal at 4% per annum in two years? 1811 0

उत्तर : 1. "Rs. 704"
व्याख्या :
Answer: A) Rs. 704 Explanation: We know that, S.I. = PTR100⇒ P = S.I x 100T x RAnd also,C.I = P1 + R100n- 1 From given data, P = Rs. 8625 Now, C.I = 86251+41002-1= 862526252-1= 8625676625-1= 8625 x 51625C.I = Rs. 703.80

प्र: What is the gram formula mass of Li2SO4? 1811 0

प्र: Train K crosses a pole in 30 seconds and train L crosses the same pole in one minute and 20 seconds. The length of train K is three-fourths the length of train L. What is the ratio of the speed of train K to that of train L ? 1811 0

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प्र: Which of the following is not a transverse wave? 1818 05b5cc6a9e4d2b4197774cf24

प्र: Which liquid is the most viscous? 1816 05b5cc6abe4d2b4197774d016

उत्तर : 4. "Oil" व्याख्या :Answer: D) Oil Explanation: Here Oil is the most viscous liquid. The liquid with the most intermolecular force is high viscous. viscosity is how smoothly a liquid flows and how hardly the liquid flows it is highly viscous.

प्र: The calendar for the year 1988 is same as which upcoming year ? 1814 05b5cc6cfe4d2b4197774e2e3

उत्तर : 3. "2016" व्याख्या :Answer: C) 2016 Explanation: We already know that the calendar after a leap year repeats again after 28 years. Here year 1988 is a Leap year, then the same calendar will be in the year = 1988 + 28 = 2016.

प्र: If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ? 1814 05b5cc6e2e4d2b4197774ec7f

उत्तर : 3. "18.33 %" व्याख्या :Answer: C) 18.33 % Explanation: We know that I = PTR/100 11 = (2x30xR)/100 R = 18.333 %

प्र: What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop? 1814 05b5cc6f1e4d2b4197774ef91

उत्तर : 4. "5gR" व्याख्या :Answer: D) D Explanation: To complete the vertical loop, the minimum speed required at the lowest point = 5gR.

प्र: Simple interest on a certain sum at 7% per annum for 4 years is Rs. 2415. What will be the compound interest on the same principal at 4% per annum in two years? 1811 05b5cc6a7e4d2b4197774ce22

उत्तर : 1. "Rs. 704" व्याख्या :Answer: A) Rs. 704 Explanation: We know that, S.I. = PTR100⇒ P = S.I x 100T x RAnd also,C.I = P1 + R100n- 1 From given data, P = Rs. 8625 Now, C.I = 86251+41002-1= 862526252-1= 8625676625-1= 8625 x 51625C.I = Rs. 703.80

प्र: What is the gram formula mass of Li2SO4? 1811 05b5cc67be4d2b4197774c1d1

प्र: Train K crosses a pole in 30 seconds and train L crosses the same pole in one minute and 20 seconds. The length of train K is three-fourths the length of train L. What is the ratio of the speed of train K to that of train L ? 1811 05b5cc6e0e4d2b4197774eb39

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प्र: Which of the following is not a transverse wave? 1818 0

प्र: Which liquid is the most viscous? 1816 0

उत्तर : 4. "Oil"
व्याख्या :
Answer: D) Oil Explanation: Here Oil is the most viscous liquid. The liquid with the most intermolecular force is high viscous. viscosity is how smoothly a liquid flows and how hardly the liquid flows it is highly viscous.

प्र: The calendar for the year 1988 is same as which upcoming year ? 1814 0

उत्तर : 3. "2016"
व्याख्या :
Answer: C) 2016 Explanation: We already know that the calendar after a leap year repeats again after 28 years. Here year 1988 is a Leap year, then the same calendar will be in the year = 1988 + 28 = 2016.

प्र: If rupee two produces rupees eleven over a period of 30 years, find the rate of simple interest ? 1814 0

उत्तर : 3. "18.33 %"
व्याख्या :
Answer: C) 18.33 % Explanation: We know that I = PTR/100 11 = (2x30xR)/100 R = 18.333 %

प्र: What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop? 1814 0

उत्तर : 4. "5gR"
व्याख्या :
Answer: D) D Explanation: To complete the vertical loop, the minimum speed required at the lowest point = 5gR.

प्र: Simple interest on a certain sum at 7% per annum for 4 years is Rs. 2415. What will be the compound interest on the same principal at 4% per annum in two years? 1811 0

उत्तर : 1. "Rs. 704"
व्याख्या :
Answer: A) Rs. 704 Explanation: We know that, S.I. = PTR100⇒ P = S.I x 100T x RAnd also,C.I = P1 + R100n- 1 From given data, P = Rs. 8625 Now, C.I = 86251+41002-1= 862526252-1= 8625676625-1= 8625 x 51625C.I = Rs. 703.80

प्र: What is the gram formula mass of Li2SO4? 1811 0

प्र: Train K crosses a pole in 30 seconds and train L crosses the same pole in one minute and 20 seconds. The length of train K is three-fourths the length of train L. What is the ratio of the speed of train K to that of train L ? 1811 0