# An AC source is connected to the given circuit. The value of $$\phi$$ will be: 1. $$60^\circ$$ 2. $$90^\circ$$ 3. $$30^\circ$$ 4. $$45^\circ$$

Subtopic:  Different Types of AC Circuits |
63%
From NCERT
NEET - 2023
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The given circuit is equivalent to:

 1 2 3 4
Subtopic:  Logic gates |
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NEET - 2023
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The position of a particle is given by;
$$\vec r(t)=4t\hat i+2t^2\hat j+5\hat k$$
where $$t$$ is in seconds and $$r$$ in metre. Find the magnitude and direction of velocity $$v(t)$$, at $$t=1~\mathrm{s}$$, with respect to $$x$$-axis:
 1 $$4\sqrt2~\text{ms}^{-1},45^\circ$$ 2 $$4\sqrt2~\text{ms}^{-1},60^\circ$$ 3 $$3\sqrt2~\text{ms}^{-1},30^\circ$$ 4 $$3\sqrt2~\text{ms}^{-1},45^\circ$$
Subtopic:  Speed & Velocity |
77%
From NCERT
NEET - 2023
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The equivalent capacitance of the arrangement shown in the figure is:

 1 $$30~\mu \text{F}$$ 2 $$15~\mu \text{F}$$ 3 $$25~\mu\text{F}$$ 4 $$20~\mu\text{F}$$
Subtopic:  Combination of Capacitors |
67%
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NEET - 2023
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Match List - I with List - II
 List-I List-II (A) Protein (I) C=C double bonds (B) Unsaturated fatty acid (II) Phosphodiester bond (C) Nucleic acid (III) Glycosidic bonds (D) Polysaccharide (IV) Peptide bonds
Choose the correct answer from the options given below:
 Options: (A) (B) (C) (D) 1. II I IV III 2. IV III I II 3. IV I II III 4. I IV III II
Subtopic:  Nucleic Acid | Proteins | Lipids | Carbohydrates: Glycosidic Bond & Disaccharide |
86%
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NEET - 2023
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A certain wire $$A$$ has resistance $$81$$ $$\Omega$$. The resistance of another wire $$B$$ of the same material and equal length but of diameter thrice the diameter of $$A$$ will be:
 1 $$81$$ $$\Omega$$ 2 $$9$$ $$\Omega$$ 3 $$729$$ $$\Omega$$ 4 $$243$$ $$\Omega$$
Subtopic:  Derivation of Ohm's Law |
73%
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NEET - 2023
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Match List - I with List - II
 List - I List - II (A) Hydrarch succession (I) Gradual change in the species composition (B) Xerarch succession (II) Faster and climax reached quickly (C) Ecological succession (III) Lichens to mesic conditions (D) Secondary succession (IV) Phytoplankton to mesic conditions
Choose the correct answer from the options given below:
 Options: (A) (B) (C) (D) 1. IV II III I 2. III I IV II 3. I IV II III 4. IV III I II
Subtopic:  Ecological Succession (OLD NCERT) |
72%
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NEET - 2023
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In Calotropis, aestivation is:
 1 Valvate 2 Vexillary 3 Imbricate 4 Twisted
Subtopic:  Flower & Parts of Flower |
81%
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NEET - 2023
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Match List - I with List - II
 List - I List - II (A) Chlorophyll a (I) Yellow to yellow orange (B) Chlorophyll b (II) Yellow green (C) Xanthophyll (III) Blue green (D) Carotenoids (IV) Yellow
Choose the correct answer from the options given below:
 Options: (A) (B) (C) (D) 1. III II IV I 2. III I IV II 3. II III I IV 4. IV III II I
Subtopic:  Pigments |
81%
From NCERT
NEET - 2023