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JEE Main Test 108
Result
JEE Main Test 108

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  • Question 1/10
    4 / -1

    The carboxyl functional group (— COOH) is present in

    Solutions

     

  • Question 2/10
    4 / -1

    Match metal ion Column I with colour Column II in the presence of alizarin.

    Solutions

    Alizarin is a red pigment present in madder root, used in dying and gives different colors with different colors
    i.e.

    Sr2+→ Pink, Mg2+ → Violet

    Al3+ → Red, Ba2+ → blue.

     

  • Question 3/10
    4 / -1

    Bithional is added to soap as an additive to function as a/an

    Solutions

    Bithional is an antiseptic which is generally added to medicated soaps to reduce the odour produced by bacterial decomposition of organic matter on the skin.

     

  • Question 4/10
    4 / -1

    The differential equation of the family of curves y = e2x (a cos x + b sin x), where a and b are arbitrary constants, is given by

    Solutions

     

  • Question 5/10
    4 / -1

    Solutions

     

  • Question 6/10
    4 / -1

    |a| = |b| = 5 and the angle between a and b is π/4. The area of the triangle constructed on the vectors a – 2b and 3a + 2b is

    Solutions

     

  • Question 7/10
    4 / -1

    The graph between angle of deviation (δ) and angle of incidence (i) for a triangular prism is represented by

    Solutions

    The deviation produced by a prism depends on.

    1. Angle of Incidence
    2. Angle of prism
    3. Wavelength of light used 

    If the faces of prism on which light Incident and from which it emerges are parallel then the angle of prism will be zero and the angle of deviation is zero. The prism acts as a  transparent plate. If ‘µ’ of the material of prism is equal to that of surrounding no refraction takes place at its faces and light passes undeviated  i1 = r1

     

  • Question 8/10
    4 / -1

    The distance of a point P(a, b, c) from the X - axis is

    Solutions

    Point  P(a, b, c)

    Its distance from  x-axis

     

  • Question 9/10
    4 / -1

    If two +5 D, lenses are mounted at some distance apart, the equivalent power will always he negative, if the distance is

    Solutions

     

     

  • Question 10/10
    4 / -1

    The equation of a plane passing through the line of intersection of the planes x + 2y + 3z = 2, x - y + z = 3 and at a distance 2/√3 from the point (3, 1, -1), is

    Solutions

     

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