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Student A rub solid baking soda on dry litmus paper, B rub metal oxide on dry litmus paper, C dip litmus paper in vinegar, D dip litmus paper in aqueous solution of baking soda. The observations were made by student A, B, C, and D should be- Student Effect on dry red litmus paper Effect on dry blue litmus paper A Color Changed to blue No change B No change Color changed to red C No change Color changed to red D Color Changed to blue       Color changed to red The correct observation was made by the student
If the following mathematical signs are changed as given below, then select the option which represents the correct equation. ÷ is changed to + × is changed to - + is changed to × - is changed to ÷
Read the given information carefully and answer the questions related to it. The eight friends A, B, C, D, E, F, G and H are sitting in the center of a circle, (they do not have to be the same). i. The location of A is the third to the right of F, who is sitting on the left of the D on the second number. ii. C and H are sitting face to face with each other. iii. None of F and C are sitting next to B. iv. B is not sitting in between H and A. v. G is seated opposite A. If the location of E is replaced by B, the location of C is shifted from place of G and the location of A is mutual, then who will be the third position on the right of C?
There are six people Kirti, Kavita, Komal, Khushi, Koel and Kritika, who got different positions in a competition. Kavita got second position while Khushi got third position from the last. Komal’s position was immediately after Kavita and immediately before Khushi. Koel does not get either the first position or the last position. Kirti also does not get the last position. Who got the last position?
There are seven persons Amit, Roshan, Ravi, Priya, Amrita, Arpita and Mitul. They participated in a competition where they got different positions. Amit scored the first position while Mitul scored the last position. Priya scored fourth position from the last. Ravi scored one position higher than Priya while Amrita scored one position lower than Priya. Roshan scored higher position than five of them. Who scored the second lowest position?
Statement (I): The term ‘encoder’ is used for a device that provides an analog output as a result of angular or linear displacement. Statement (II): An increment encoder detects changes in angular or linear displacement from some datum position where as an absolute encoder gives the actual angular or linear position.
H, Y, T, U and P got different ranks based on their marks in the semester examination and viva. H got 3rd rank in the semester exam and 5th rank in the viva. T got 5th position in the semester and 1st position in the viva. P got 2nd position in both exams and viva. Y got 1st position in semester examinations and 4th position in the viva. Who got 3rd position in the viva?
For a multi-electron atom $$l$$, L and S specify the one electron orbital angular momentum, total orbital angular momentum and total spin angular momentum respectively. The selection rules for electric dipole transition between the two electronic energy levels, specified by $$l$$, L and S are
A displacement sensor (a dial indicator) measures the lateral displacement of a mandrel mounted on the taper hole inside a drill spindle. The mandrel axis is an extension of the drill spindle taper hole axis and the protruding portion of the mandrel surface is perfectly cylindrical measurements are taken with the sensor placed at two positions P and Q as shown in the figure. The readings are recorded as Rx = maximum deflection minus minimum deflection, corresponding to sensor position at X, over one rotation. If RP = RQ > 0, which one of the following would be consistent with the observation?
The rate of change of angular speed is constant. What will be the expression for change in angular speed after time dt, if angular acceleration is ‘a’? The initial angular speed is ‘w’.