This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If A,B>0, and A+B=60 degrees find minimum value of tan Atan B |
| Answer» If A,B>0, and A+B=60 degrees find minimum value of tan Atan B | |
| 2. |
least count of an analytical balance is 0.0002 gm .which of the following is the correct value ? (a) 9.3171 gm (b) 9.317 gm (c) 9.3175 gm (d) 9.3170 gm |
| Answer» least count of an analytical balance is 0.0002 gm .which of the following is the correct value ? (a) 9.3171 gm (b) 9.317 gm (c) 9.3175 gm (d) 9.3170 gm | |
| 3. |
Let [.] and {.} be the greatest integer function and fractional part function respectively. Then the number of points of discontinuity of the function f(x)=sin({2x+[2x]+[3–x]}) for x∈[0,4] is |
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Answer» Let [.] and {.} be the greatest integer function and fractional part function respectively. Then the number of points of discontinuity of the function f(x)=sin({2x+[2x]+[3–x]}) for x∈[0,4] is |
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| 4. |
Iflimn→∞(31⋅2⋅4+42⋅3⋅5+53⋅4⋅6+⋯+n+2n(n+1)(n+3)) can be expressed as rational in the lowest form mn where m,n∈N, then the value of (m+n) is |
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Answer» Iflimn→∞(31⋅2⋅4+42⋅3⋅5+53⋅4⋅6+⋯+n+2n(n+1)(n+3)) can be expressed as rational in the lowest form mn where m,n∈N, then the value of (m+n) is |
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| 5. |
What is the difference between symmetric and reflexive relation |
| Answer» What is the difference between symmetric and reflexive relation | |
| 6. |
The sum of all natural numbers ′n′ such that 100<n<200 and H.C.F. (91,n)>1 is: |
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Answer» The sum of all natural numbers ′n′ such that 100<n<200 and H.C.F. (91,n)>1 is: |
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| 7. |
If f(x)=2x+1 and g(x)=x2+1, then go(fof)(2)= |
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Answer» If f(x)=2x+1 and g(x)=x2+1, then go(fof)(2)= |
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| 8. |
what is werner" theory? |
| Answer» what is werner" theory? | |
| 9. |
The sum of all natural numbers ′n′ such that 100<n<200 and H.C.F. (91,n)>1 is: |
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Answer» The sum of all natural numbers ′n′ such that 100<n<200 and H.C.F. (91,n)>1 is: |
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| 10. |
The asymptotes of the curve y=x2+2x−1x are |
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Answer» The asymptotes of the curve y=x2+2x−1x are |
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| 11. |
The value of the quantity P where P=∫10xexdx, is equal to |
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Answer» The value of the quantity P where P=∫10xexdx, is equal to |
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| 12. |
The value of the determinant xx+yx+2yx+2yxx+yx+yx+2yx is(a) 9x2(x + y)(b) 9y2(x + y)(c) 3y2(x + y)(d) 7x2(x + y) |
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Answer» The value of the determinant is (a) 9x2(x + y) (b) 9y2(x + y) (c) 3y2(x + y) (d) 7x2(x + y) |
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| 13. |
If f(x)=∣∣∣∣sinx20ex+x12cosx32∣∣∣∣, then the absolute value of f′(0) is |
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Answer» If f(x)=∣∣ ∣∣sinx20ex+x12cosx32∣∣ ∣∣, then the absolute value of f′(0) is |
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| 14. |
If the lines and are perpendicular, find the value of k . |
| Answer» If the lines and are perpendicular, find the value of k . | |
| 15. |
106.A SHM having an amplitude of A and time prd T is represented by the equation Y = 5 Sin Pi(t+4)m. the what are the value of A (In m) and T (in Sec) ? |
| Answer» 106.A SHM having an amplitude of A and time prd T is represented by the equation Y = 5 Sin Pi(t+4)m. the what are the value of A (In m) and T (in Sec) ? | |
| 16. |
x log 2x |
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Answer» x log 2x |
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| 17. |
If x is rational,f(x)=1 else f(x)=0. Then fof(√5)= |
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Answer» If x is rational,f(x)=1 else f(x)=0. Then fof(√5)= |
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| 18. |
If ey(x+1)=1 show that d2ydx2=(dydx)2 |
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Answer» If ey(x+1)=1 show that d2ydx2=(dydx)2 |
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| 19. |
Let f(x) be a continuous function of x defined on [0, a] such that f(a - x) = f(x). Then, ∫a0x f(x) dx is equal to |
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Answer» Let f(x) be a continuous function of x defined on [0, a] such that f(a - x) = f(x). Then, ∫a0x f(x) dx is equal to |
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| 20. |
f:R→R defined by f(x)=1+x2. Is it one one , onto or bijective? |
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Answer»
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| 21. |
If 2cos3B+3cos4A=3 and 2sin3B−3sin4A=0, where 2A and 2B are positive acute angles. If 2A+3B=πJ, then the value of J is |
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Answer» If 2cos3B+3cos4A=3 and 2sin3B−3sin4A=0, where 2A and 2B are positive acute angles. If 2A+3B=πJ, then the value of J is |
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| 22. |
36. A square sheet of paper ABCD is so folded that B falls on the middle pt.M of CD and the crease cuts BC at E. Find the ratio CEEB |
| Answer» 36. A square sheet of paper ABCD is so folded that B falls on the middle pt.M of CD and the crease cuts BC at E. Find the ratio CEEB | |
| 23. |
How many triangles can be formed by joining four points on a circle |
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Answer» How many triangles can be formed by joining four points on a circle |
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| 24. |
The differential equation of the family of curves represented by the equation x2+y2=a2 is |
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Answer» The differential equation of the family of curves represented by the equation x2+y2=a2 is
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| 25. |
If the tangent to the ellipse x2a2+y2b2=1, a>b at the point P(acosθ,bsinθ) meets the auxiliary circle at A and B such that the chord AB subtends a right angle at the centre of the circle, then (Here, e represents the eccentricity of ellipse) |
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Answer» If the tangent to the ellipse x2a2+y2b2=1, a>b at the point P(acosθ,bsinθ) meets the auxiliary circle at A and B such that the chord AB subtends a right angle at the centre of the circle, then |
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| 26. |
Choose the correct pair of equal sets. |
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Answer» Choose the correct pair of equal sets. |
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| 27. |
If f:[1,∞)→B defined by the function f(x)=x2−2x+6 is a surjection, then B is equal to |
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Answer» If f:[1,∞)→B defined by the function f(x)=x2−2x+6 is a surjection, then B is equal to |
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| 28. |
Find the locus of the point(t2-t+1,t2+t+1), t belongs to R. |
| Answer» Find the locus of the point(t2-t+1,t2+t+1), t belongs to R. | |
| 29. |
x=ct and y=ct(1-at) find the equation of trajectorywhere t is time and a and c are constants |
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Answer» x=ct and y=ct(1-at) find the equation of trajectory where t is time and a and c are constants |
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| 30. |
If Z is the set of all Integers, W is the set of Whole Numbers, N is the set of Natural Numbers, then which of the following is/are correct? |
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Answer» If Z is the set of all Integers, W is the set of Whole Numbers, N is the set of Natural Numbers, then which of the following is/are correct? |
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| 31. |
If the lines r→=2a1→-3a2→+λb1→ and r→=a2→+μb2→ are coplanar and a1→ b1→ b2→=ka2→ b1→ b2→, then k =__________. |
| Answer» If the lines are coplanar and , then k =__________. | |
| 32. |
Let m and M be respectively the minimum and maximum values of∣∣∣∣∣cos2x1+sin2xsin2x1+cos2xsin2xsin2xcos2xsin2x1+sin2x∣∣∣∣∣Then the ordered pair (m,M) is equal to: |
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Answer» Let m and M be respectively the minimum and maximum values of |
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| 33. |
The ratio of the coefficient of x15 to the term independent of x in the expansion of (x2+2x)15 is |
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Answer» The ratio of the coefficient of x15 to the term independent of x in the expansion of (x2+2x)15 is |
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| 34. |
Let A and B be sets. Show that f : A × B → B × A such that ( a , b ) = ( b , a ) is bijective function. |
| Answer» Let A and B be sets. Show that f : A × B → B × A such that ( a , b ) = ( b , a ) is bijective function. | |
| 35. |
If sinθ+sinϕ=√3(cosϕ−cosθ), then the value of sin3θ+sin3ϕ is ( where θ∈(0,90∘),ϕ∈(0,90∘)) |
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Answer» If sinθ+sinϕ=√3(cosϕ−cosθ), then the value of sin3θ+sin3ϕ is ( where θ∈(0,90∘),ϕ∈(0,90∘)) |
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| 36. |
If A>0 , B>0 and A+B=π/2 then find the Maxima of tanAtanB |
| Answer» If A>0 , B>0 and A+B=π/2 then find the Maxima of tanAtanB | |
| 37. |
A committee of 5 members is to be formed from 6 boys and 5 girls. The number of ways in which the committee can be formed so that the committee must contain at least one boy and one girl having majority of boys is |
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Answer» A committee of 5 members is to be formed from 6 boys and 5 girls. The number of ways in which the committee can be formed so that the committee must contain at least one boy and one girl having majority of boys is |
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| 38. |
So long as the degree of consolidation (U) does not exceed 60% , its value after a time t is determined by the equation |
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Answer» So long as the degree of consolidation (U) does not exceed 60% , its value after a time t is determined by the equation |
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| 39. |
Number of integral values of x2 if x∈(−3,2] is |
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Answer» Number of integral values of x2 if x∈(−3,2] is |
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| 40. |
what is expression for fringe width? |
| Answer» what is expression for fringe width? | |
| 41. |
The domain of the function f given by f(x)=x2+2x+1x2-x-6(a) R −{−2, 3}(b) R −{−3, 2}(c) R −[−2, 3](d) R −(−2, 3) |
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Answer» The domain of the function f given by (a) R −{−2, 3} (b) R −{−3, 2} (c) R −[−2, 3] (d) R −(−2, 3) |
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| 42. |
If →x and →y are two non-collinear vectors such that (9a−3b)→x+(8b−6c)→y+(8c−16a)(→x×→y)=→0, then which of the following is/are correct ? |
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Answer» If →x and →y are two non-collinear vectors such that (9a−3b)→x+(8b−6c)→y+(8c−16a)(→x×→y)=→0, then which of the following is/are correct ? |
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| 43. |
If the normal to the curve y2=5x−1 at the point (1,−2) is of the form ax−5y+b=0, then a−b is |
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Answer» If the normal to the curve y2=5x−1 at the point (1,−2) is of the form ax−5y+b=0, then a−b is |
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| 44. |
Evaluate 7∫0sgn(x+1x−1)dx |
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Answer» Evaluate 7∫0sgn(x+1x−1)dx |
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| 45. |
If f(x)=x∫−1|t| dt, then for any x≥0,f(x) is equal to |
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Answer» If f(x)=x∫−1|t| dt, then for any x≥0,f(x) is equal to |
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| 46. |
If z is a complex number such that |z-1|=1, z not equal to 2, then the real part of z-2/z is |
| Answer» If z is a complex number such that |z-1|=1, z not equal to 2, then the real part of z-2/z is | |
| 47. |
If cosec A = 2, find the value of 1tan A+sin A1+cos A. |
| Answer» If cosec A = 2, find the value of . | |
| 48. |
The complex number cosθ + i sinθ __________ be zero for any θ. |
| Answer» The complex number cosθ + i sinθ __________ be zero for any θ. | |
| 49. |
k = limx→∞⎛⎜⎜⎝1000∑k=1(x+k)mxm+101000⎞⎟⎟⎠ is (m > 101) |
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Answer» k = limx→∞⎛⎜ |
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| 50. |
determine the set of values of p for which the given quadratic equation has real roots (i) 5x^2-2px+3=0 |
| Answer» determine the set of values of p for which the given quadratic equation has real roots (i) 5x^2-2px+3=0 | |